NASA Celebrates Hispanic Heritage Month 2023

NASA Celebrates Hispanic Heritage Month 2023

In honor of Hispanic Heritage Month, we recognize Hispanic astronauts who have flown in space. The table below lists these individuals of various nationalities who have made significant contributions to their space programs. The first Hispanic astronauts completed short flights to a Soviet space station and aboard the space shuttle. In the past 23 years, many more have completed flights to the International Space Station and contributed to its assembly, operations, and research activities.

Table of Hispanic astronauts who have flown in space.

Table of Hispanic astronauts who have flown in space.

Arnaldo Tamayo Méndez of Cuba holds the title of the first person of Hispanic heritage to fly in space. He spent eight days aboard the Salyut-6 space station in September 1980 as part of the Soviet Union’s Interkosmos program to fly cosmonauts from friendly socialist countries. The first Hispanic to fly on the space shuttle, Payload Specialist Rodolfo Neri Vela of Mexico, also introduced tortillas to astronauts’ on board menus during his flight on STS-61B in November 1985. Tortillas continue to be a staple on the space station today, for everything from breakfast tacos, to burgers, sandwiches, and pizzas. Selected as an astronaut in 1980, Costa Rican-born Franklin R. Chang-Díaz holds the honor as the first Hispanic American in space. He flew in space a record-tying seven times, including one visit to the Russian space station Mir and one to the International Space Station.

Cuban cosmonaut Arnaldo Tamayo Méndez Rodolfo Neri Vela enjoys a trend-setting tortilla during the STS-61B mission NASA astronaut Franklin R. Chang-Díaz

Left: Portrait of Cuban cosmonaut Arnaldo Tamayo Méndez. Middle: Mexican payload specialist Rodolfo Neri Vela enjoys a trend-setting tortilla during the STS-61B mission. Right: Portrait of NASA astronaut Franklin R. Chang-Díaz.

Franklin R. Chang-Díaz

Chang-Díaz’s first flight, STS-61C aboard space shuttle Columbia, took place in January 1986, a six-day flight to deploy a communications satellite and to remotely observe Halley’s comet. The crew included two future NASA administrators, NASA astronauts Charles F. Bolden and U.S. Senator (D-FL) C. William “Bill” Nelson. The flight landed just 10 days before the tragic loss of space shuttle Challenger. His next mission, STS 34 aboard Atlantis, in October 1989 saw the deployment of the Galileo spacecraft to explore Jupiter with an orbiter and an atmospheric probe. Chang-Díaz launched on his third mission, STS 46 in July 1992, an eight-day flight aboard Atlantis to test fly the first Tethered Satellite System (TSS-1).

Franklin R. Chang-Díaz, center, the first Hispanic American astronaut, with his fellow STS-61C crew members Chang-Díaz, and the STS-34 crew Chang-Díaz, with the STS-46 crew

Left: Franklin R. Chang-Díaz, center, the first Hispanic American astronaut, with his fellow STS-61C crew members. Middle: Chang-Díaz, center, and the STS-34 crew. Right: Chang-Díaz, upper right, with the STS-46 crew.

Chang-Díaz returned to space for his fourth mission in January 1994 aboard Discovery. The eight-day STS-60 flight comprised the first flight in the Shuttle-Mir program, with Russian cosmonaut Sergey K. Krikalev a member of the crew. Chang-Díaz launched on his fifth flight in February 1996, the 16-day STS-75 mission aboard Columbia to refly the TSS. On his sixth mission in June 1998, the STS-91 crew docked Discovery with the Russian space station Mir and returned astronaut Andrew S.W. Thomas to earth, the final Shuttle-Mir mission.

Franklin R. Chang-Díaz, with the STS-60 crew Chang-Díaz with his STS-75 crew mates Chang-Díaz, with the STS-91 and Mir 25 crews

Left: Franklin R. Chang-Díaz, lower left, with the STS-60 crew. Middle: Chang-Díaz, left, with his STS-75 crew mates.
Right: Chang-Díaz, with the STS-91 and Mir 25 crews.

During his record-tying seventh trip into space, Chang-Díaz made his only visit to the space station. The main goals of Endeavour’s STS-111 mission in June 2002, included the exchange of the Expedition 4 and 5 crews and the resupply of the station using the Leonardo Multi-Purpose Logistics Module (MPLM). Two new research facilities rode in the MPLM, the fifth Expedite the Processing of Experiments to the Space Station (EXPRESS) rack and the Microgravity Sciences Glovebox. Chang-Díaz completed three spacewalks with his fellow mission specialist, French astronaut Philippe Perrin, to install the Mobile Base System portion of the Canadarm2’s remote manipulator system and perform maintenance tasks on the station.

NASA astronaut Franklin R. Chang-Díaz with his STS-111 crewmates and the Expedition 4 and 5 crews Chang-Díaz during the first STS-111 spacewalk Chang-Díaz in Endeavour’s middeck following undocking from the space station

Left: NASA astronaut Franklin R. Chang-Díaz, left of center, with his STS-111 crewmates and the Expedition 4 and 5 crews. Middle: Chang-Díaz during the first STS-111 spacewalk. Right: Chang-Díaz in Endeavour’s middeck following undocking from the space station.

Sidney M. Gutierrez

NASA selected New Mexico native Sidney M. Gutierrez as an astronaut in 1984. On his first mission in June 1991, he served as the pilot of Columbia on the STS-40 Spacelab Life Sciences-1 mission, a nine-day flight dedicated to investigating the responses of the human body to weightlessness. He also served as a test subject for several of the experiments. During his second mission in April 1994, Gutierrez served as the commander of STS-59, the Space Radar Laboratory-1 flight, an 11-day mission aboard Endeavour. The payload included a synthetic aperture imaging radar.

NASA astronaut Sidney M. Gutierrez with his STS-40 crew mates Gutierrez with the STS-59 crew.

Left: NASA astronaut Sidney M. Gutierrez, center, with his STS-40 crew mates. Right: Gutierrez, center, with the STS-59 crew.

Ellen Ochoa

Selected as the first female Hispanic astronaut in 1990, Ellen Ochoa completed four spaceflights and then served as the first Hispanic director of NASA’s Johnson Space Center in Houston. On her first mission in April 1993, she served as a mission specialist on the nine-day STS-56 flight, the second Atmospheric Laboratory for Applications and Science (ATLAS) mission aboard Discovery. An accomplished flautist, she played her flute during the flight. On her second flight, STS-66 in March 1994, Ochoa flew aboard Atlantis and operated the experiments of the ATLAS-3 payload during the 11-day mission.

Ellen Ochoa and the rest of the STS-56 crew Ochoa plays the flute on Discovery’s flight deck Ochoa and the rest of the STS-66 crew

Left: Ellen Ochoa, top left, and the rest of the STS-56 crew. Middle: Ochoa plays the flute on Discovery’s flight deck. Right: Ochoa, top left, and the rest of the STS-66 crew.

Ochoa holds the distinction as the first Hispanic astronaut to visit the space station, making her first visit in May 1999 as a mission specialist aboard Discovery’s 10-day STS-96 mission. The goals of the mission – only the second shuttle flight to the station that, at the time, comprised only two modules – included the transfer of two tons of logistics to the station, launched inside a Spacehab double module, and the delivery of the Russian Strela cargo crane.

The space station as seen from STS-96 NASA astronaut Ellen Ochoa with the STS-96 crew in the Unity Node 1 Ochoa with fellow STS-96 crewmembers Julie Payette of the Canadian Space Agency in the Zarya module.

Left: The space station as seen from STS-96. Middle: NASA astronaut Ellen Ochoa, lower right, with the STS-96 crew in the Unity Node 1. Right: Ochoa, bottom, with fellow STS-96 crewmembers Julie Payette of the Canadian Space Agency in the Zarya module.

Ochoa returned to a much-enlarged space station aboard space shuttle Atlantis in April 2002 during the STS-110 mission that delivered the 13-ton S0 truss – the center segment section to which future truss segments were later attached. Ochoa operated the Space Station Remote Manipulator System (SSRMS), also known as Canadarm2, to lift the S0 truss from the shuttle’s payload bay and attach it atop the Destiny module. The S0 truss also contained the Mobile Transporter to allow the SSRMS to translate up and down the trusses. Ochoa was named as JSC’s deputy director in 2007, then as JSC’s first Hispanic director in 2013. She served in that position until her retirement from NASA in 2018.

 NASA astronaut Ellen Ochoa operating Canadarm2 The space station as seen from the departing STS-110, showing the S0 truss mounted on Destiny Portrait of Ellen Ochoa as director of NASA’s Johnson Space Center in Houston

Left: NASA astronaut Ellen Ochoa operating Canadarm2 in the Destiny module. Middle: The space station as seen from the departing STS-110, showing the S0 truss mounted on Destiny.  Right: Portrait of Ochoa as director of NASA’s Johnson Space Center in Houston.

Michael E. Lopez-Alegria

NASA selected Michael E. “LA” Lopez-Alegria, born in Madrid, Spain, as an astronaut in 1992. On his first spaceflight, he served as a mission specialist on STS-73, the second flight of the United States Microgravity Laboratory. The 16-day mission aboard Columbia in October 1995 included 37 investigations supported by 11 facilities, with the seven-member crew working around the clock in two shifts in a Spacelab module.

Michael E. Lopez-Alegria with the rest of the STS-73 crew inside the Spacelab module. Lopez-Alegria working on biological experiment in the Spacelab module

Left: Michael E. Lopez-Alegria, center, with the rest of the STS-73 crew inside the Spacelab module. Right: Lopez-Alegria working on biological experiment in the Spacelab module.

Lopez-Alegria served as a mission specialist on STS-92 during his first visit to the space station. He and his six crewmates launched aboard Discovery in October 2000, the 100th launch of the program and the last to visit an unoccupied station. At the time, the station comprised just three modules. During the mission, the STS-92 crew installed the Z1 truss atop the Unity module, four Control Moment Gyros, and the third Pressurized Mating Adaptor. The Z1 truss enabled the addition of solar arrays and radiators on the subsequent assembly flight and also contained high-rate communications equipment including the first Space-to-Ground antenna. Lopez-Alegria participated in two of the mission’s four spacewalks with Peter J. “Jeff” Wisoff to complete the assembly tasks. During their last spacewalk, the two conducted the first flight evaluation at the station of the Simplified Aid for EVA Rescue (SAFER), a propulsive backpack to be used by astronauts should they become detached from the spacecraft. The STS-92 crew left the station ready for its first inhabitants, and indeed less than two weeks later, the first Expedition crew arrived to begin permanent residency in low Earth orbit.

NASA astronaut Michael E. Lopez-Alegria working outside the space station during STS-92 Lopez-Alegria tests the Simplified Aid for EVA Rescue as fellow NASA astronaut Peter J. “Jeff” Wisoff looks on The space station as seen from Discovery shortly after undocking, showing the Z1 Truss with the Space-to-Ground Antenna at top and the third Pressurized Mating Adaptor at bottom.

Left: NASA astronaut Michael E. Lopez-Alegria working outside the space station during STS-92. Middle: Lopez-Alegria, left, tests the Simplified Aid for EVA Rescue as fellow NASA astronaut Peter J. “Jeff” Wisoff looks on. Right: The space station as seen from Discovery shortly after undocking, showing the Z1 Truss with the Space-to-Ground
Antenna at top and
the third Pressurized Mating Adaptor at bottom.

For his third flight into space, Lopez-Alegria returned to the station in November 2002 during the STS-113 mission, the facility now permanently occupied and having grown significantly in the intervening two years. The primary tasks for the STS-113 crew included adding the P1 truss on the station’s port side, installing the Crew Equipment Translation Aid (CETA) cart, and assisting in the exchange between the Expedition 5 and 6 crews. Lopez-Alegria and fellow STS-113 mission specialist John B. Harrington conducted three spacewalks to complete the installation of the P1 truss and the CETA cart. After STS-113, assembly of the station came to a temporary halt following the Feb. 1, 2003, Columbia accident, and the subsequent grounding of the space shuttle fleet. Flights did not resume until September 2006.

NASA astronaut Michael E. Lopez-Alegria during the first STS-113 spacewalk. Lopez-Alegria, second from right in the middle row, posing in the Destiny module with his STS-113 crewmates, as well as the Expedition 5 and 6 crews The space station as seen by the departing STS-113 crew, with the newly installed P1 truss visible at right

Left: NASA astronaut Michael E. Lopez-Alegria during the first STS-113 spacewalk. Middle: Lopez-Alegria, second from right in the middle row, posing in the Destiny module with his STS-113  crewmates, as well as the Expedition 5 and 6 crews. Right: The space station as seen by the departing STS-113 crew, with the newly installed P1 truss visible at right.

Lopez-Alegria returned to the space station again shortly after assembly resumed. For his fourth spaceflight, he launched aboard Soyuz TMA9 in September 2006, from the Baikonur Cosmodrome in Kazakhstan. Mikhail V. Tyurin of Roscosmos accompanied him during the 215-day mission, to that time the longest space station expedition, was Mikhail V. Tyurin of Roscosmos. European Space Agency (ESA) astronaut Thomas A. Reiter, onboard the station since July 2006, became part of the Expedition 14 crew. As Commander of Expedition 14, Lopez-Alegria oversaw one of the most complex set of activities in the assembly of the station – the reconfiguration of its power and cooling systems. A week before his arrival, the STS-115 mission had delivered the second set of solar arrays to the station as part of the P3/P4 truss segment, positioning them outboard of the P1 segment. As part of the reconfiguration, the port side P6 array mounted atop the Z1 truss needed to be retracted to prevent interference with the rotation of the new arrays, a task that was completed during the visiting STS-116 mission in December that also added the P5 short spacer to the port side truss. That mission brought NASA astronaut Sunita L. “Suni” Williams to the station as a new addition to Expedition 14 and returned Reiter back to Earth. During Expedition 14, Lopez-Alegria took part in five spacewalks, two in Orlan spacesuits with Tyurin to conduct work on the outside of the Russian segment and three in American spacesuits, with Williams to reconfigure the cooling system of the U.S. segment. He accumulated a total of 67 hours and 40 minutes over 10 spacewalks – still the record among American astronauts. Lopez-Alegria also conducted a variety of scientific experiments.

Space station configuration when NASA astronaut Michael E. Lopez-Alegria arrived in September 2006 Lopez-Alegria, back row middle, with STS-116 and Expedition 14 crew members Celebrating the holidays aboard the space station

Left: Space station configuration when NASA astronaut Michael E. Lopez-Alegria arrived in September 2006. Middle: Lopez-Alegria, back row middle, with STS-116 and Expedition 14 crew members. Right: Celebrating the holidays aboard the space station.

NASA astronaut Michael E. Lopez-Alegria conducting a session of the Canadian TRAC experiment in the Destiny module Michael E. Lopez-Alegria conducts maintenance on the exterior of the Russian segment The space station’s configuration at the end of Lopez-Alegria’s mission

Left: NASA astronaut Michael E. Lopez-Alegria conducting a session of the Canadian TRAC experiment in the Destiny module. Middle: In an Orlan suit, Lopez-Alegria conducts maintenance on the exterior of the Russian segment. Right: The space station’s configuration at the end of Lopez-Alegria’s mission – note the retracted P6 solar array.

Lopez-Alegria retired from NASA in 2012, joining Axiom Space shortly thereafter. In April 2022, he commanded the Ax-1 mission, the first commercial astronaut mission to the space station. He and his three crewmates spent 17 days aboard, conducting a variety of experiments. Across his five missions, Lopez-Alegria accumulated a total of 275 days in space.

Axiom astronaut Michael E. Lopez-Alegria floats into the space station during the Ax-1 mission Lopez-Alegria and the rest of the Ax-1 crew. The 11 crew members aboard the space station during the Ax-1 mission, with Lopez-Alegria at far right.

Left: Axiom astronaut Michael E. Lopez-Alegria floats into the space station during the Ax-1 mission.
Middle: Lopez-Alegria, second from right, and the rest of the Ax-1 crew. Right: The 11 crew members
aboard the space station during the Ax-1 mission, with Lopez-Alegria at far right.

Carlos I. Noriega

In 1994, NASA selected Carlos I. Noriega as the first Peruvian-born astronaut. On his first spaceflight in May 1997, he served as a mission specialist aboard STS-84, the sixth Shuttle-Mir docking mission. During the nine-day flight, the crew resupplied the Mir space station, brought NASA astronaut C. Michael Foale to the Russian outpost, and returned Jerry M. Linenger to Earth.

Carlos I. Noriega sets up an experiment during the STS-84 mission Noriega working on an experiment in the Spacehab module The 10 members of the STS-84 and Mir resident crew, with Noriega

Left: Carlos I. Noriega sets up an experiment during the STS-84 mission. Middle: Noriega working
on an experiment in the Spacehab module. Right: The 10 members of the STS-84 and Mir resident crew, with Noriega at upper right.

In December 2000, Noriega launched on his second mission, aboard Endeavour with his four crewmates on STS-97, their primary goal to install the P6 truss segment with the first set of solar arrays and radiators atop the Z1 truss. STS-97 marked the first time a shuttle visited the station after its occupancy began, but given the busy spacewalk schedule, the hatches between the two vehicles were only open for 24 hours. Noriega and fellow mission specialist Joseph R. Tanner conducted three spacewalks to complete the P6 installation and other assembly tasks. The new solar arrays generated enough power for the arrival of the U.S. laboratory module Destiny early in 2001 and the start of intensive research aboard the space station.

NASA astronaut Carlos I. Noriega waves to the camera as he installs the P6 truss and solar arrays. Noriega with the STS-97 and Expedition 1 crews in the Zarya Service Module. The space station as seen from the departing STS-97 showing the newly deployed P6 solar arrays.

Left: NASA astronaut Carlos I. Noriega waves to the camera as he installs the P6 truss and solar arrays. Middle: Noriega, center, with the STS-97 and Expedition 1 crews in the Zarya Service Module. Right: The space station as seen from the departing STS-97 showing the newly deployed P6 solar arrays.

Pedro Duque

The European Space Agency (ESA) selected Pedro Duque, born in Madrid, Spain, as an astronaut in 1992. Four years later, he joined NASA’s astronaut class of 1996 in training and two years later certified as a mission specialist. His first launch into space took place in October 1998 on Discovery’s STS-95 mission, the nine-day flight that saw astronaut John H. Glenn’s return to space. Duque returned to space in October 2003 aboard Soyuz TMA3, conducting experiments aboard the space station as part of his Cervantes visiting mission. He returned to Earth 10 days later aboard Soyuz TMA2.

Spanish astronaut Pedro Duque, lower left, representing the European Space Agency, with his STS-95 crewmates Duque conducting an experiment in the Microgravity Science Glovebox aboard the space station Duque with his Expedition 7 and 8 crewmates

Left: Spanish astronaut Pedro Duque, lower left, representing the European Space Agency, with his STS-95 crewmates. Middle: Duque conducting an experiment in the Microgravity Science Glovebox aboard the space station. Right: Duque, center, with his Expedition 7 and 8 crewmates.

Marcos C. Pontes

The Brazilian Space Agency selected Marcos C. Pontes as an astronaut in 1998. He trained with NASA’s astronaut class of 1998 and certified as a mission specialist two years later. Pontes made his one and only spaceflight in March 2006 aboard Soyuz TMA8, carrying out eight experiments. He returned to Earth 10 days later aboard Soyuz TMA7.

Brazilian astronaut Marcos Pontes, center at rear, with his Expedition 12 and 13 crewmates Pontes works on an experiment in the Destiny Laboratory Module Pontes at work on an experiment in the Russian Zvezda module.

Left: Brazilian astronaut Marcos Pontes, center at rear, with his Expedition 12 and 13 crewmates. Middle: Pontes works on an experiment in the Destiny Laboratory Module. Right: Pontes at work on an experiment in the Russian Zvezda module.

John D. “Danny” Olivas

Selected as a member of NASA’s Astronaut Class of 1998, John D. “Danny” Olivas visited the space station on two occasions as a shuttle mission specialist. His first visit took place aboard Atlantis during the STS-117 mission in June 2007. During the flight, Olivas and fellow mission specialist James F. Reilly conducted two of the four spacewalks to install the S3/S4 truss segment that included the third set of solar arrays. To prevent interfering with the rotation of the new arrays, the crew retracted the starboard P6 array mounted atop the Z1 truss. The STS-117 mission also served as a crew exchange flight, with NASA astronaut Clayton C. Anderson replacing Suni Williams as a member of Expedition 15.

NASA astronaut John D. “Danny” Olivas during an STS-117 spacewalk working on the S3/S4 truss installation. Olivas, back row at right, with the STS-117 and Expedition 15 crews The space station as seen by the departing STS-117 crew, showing the new set of starboard solar arrays at right.

Left: NASA astronaut John D. “Danny” Olivas during an STS-117 spacewalk working on the S3/S4 truss installation. Middle: Olivas, back row at right, with the STS-117 and Expedition 15 crews. Right: The space station as seen by the departing STS-117 crew, showing the new set of starboard solar arrays at right.

On his return to the station, Olivas found it a bit more crowded – three months earlier, the permanent crew aboard the station had expanded from three to six. He and his crewmates launched aboard Discovery on the STS-128 mission in August 2009. The shuttle’s payload bay contained the Leonardo MPLM bringing supplies to help maintain a 6-person crew on the space station, including three systems racks: a crew quarters, an Air Revitalization System  rack, and the Combined Operational Load Bearing External Resistance Treadmill (COLBERT) for crew exercise – as well as three research racks – the Fluid Integrated Rack , the Materials Science Research Rack, and the second Minus Eighty-degree Laboratory Freezer for ISS (MELFI). Olivas participated in three spacewalks to replace the Ammonia Tank Assembly on the P1 truss and to retrieve two experiments from the European Columbus module’s External Payload Facility. STS-128 also completed the final shuttle-based crew exchange, with NASA astronauts Nicole P. Stott and Timothy L. Kopra exchanging places as Expedition 20 crewmembers.

NASA astronaut John D. “Danny” Olivas poses during spacewalk work on the Ammonia Tank Assembly. NASA astronaut John D. “Danny” Olivas eating a chocolate and peanut butter snack NASA astronaut John D. “Danny” Olivas, at center, with the STS-128 and Expedition 20 crews

Left: NASA astronaut John D. “Danny” Olivas poses during spacewalk work on the Ammonia
Tank Assembly. Middle: Olivas eating a chocolate and peanut butter snack. Right: Olivas, at center, with the STS-128 and Expedition 20 crews.

George D. Zamka

Selected as a NASA astronaut in 1998, George D. Zamka completed his first space flight as pilot on Discovery’s STS-120 mission. Launching in October 2007, Zamka and his crewmates brought the Harmony Node 2 module to the station, temporarily berthing it on the Unity Node 1’s port side until the Expedition 16 crew relocated it to Destiny’s forward hatch. In its final location, Harmony enabled the later installation of the European and Japanese elements. The crew also relocated the P6 truss segment from atop Z1 to the outboard port truss. During the redeployment of the P6 solar arrays, one of the arrays developed a tear that required repair using a cufflink-like device to sew up the gap in the panel. STS-120 also conducted a crew exchange, with NASA astronauts Daniel M. Tani and Clay Anderson exchanging places as members of Expedition 16. As the STS-120 pilot, Zamka completed the undocking from the station and the departure fly-around maneuver.

NASA astronaut George D. Zamka holding the cufflink device used to repair the torn solar array Zamka, lower right, with the STS-120 and Expedition 16 crews The space station as seen from STS-120 departing, showing the newly delivered Harmony Node 2 module

Left: NASA astronaut George D. Zamka holding the cufflink device used to repair the torn solar array. Middle: Zamka, lower right, with the STS-120 and Expedition 16 crews. Right: The space station as seen from STS-120 departing, showing the newly delivered Harmony Node 2 module temporarily berthed at the Unity Node 1 and the relocated and redeployed P6 truss segment and solar arrays at left.

When he returned to the orbiting lab in February 2010, Zamka did so as commander of space shuttle Endeavour’s STS-130 mission. After guiding the shuttle to a successful docking with the station, Zamka and his crewmates, along with the Expedition 22 crew, installed the Tranquility Node 3 module to Unity’s port side and activated the new element. The new module provided accommodations for life support and habitation facilities for the station’s six-person crew. The crew removed the Cupola from its launch position at the end of Tranquility and relocated it to the module’s Earth-facing port. The Cupola’s six trapezoidal and one circular center window provide crews not only visibility for approaching visiting vehicles, but also spectacular views of their home planet passing by below. 

NASA astronaut George D. Zamka peering through one of the Cupola’s windows Zamka with the STS-130 and Expedition 22 crews. The space station as seen from the departing STS-130, showing the Tranquility Node 3 and Cupola berthed at the Unity Node 1, left of center.

Left: NASA astronaut George D. Zamka peering through one of the Cupola’s windows. Middle: Zamka, front row second from right, with the STS-130 and Expedition 22 crews. Right: The space  station as seem from the departing STS-130, showing the Tranquility Node 3 and Cupola berthed at the Unity Node 1, left of center.

Joseph M. “Joe” Acaba

Joseph M. “Joe” Acaba was selected in 2004 as part of NASA’s Educator Astronaut Program and qualified as a mission specialist. His first flight into space was aboard STS-119 in March 2009. Discovery brought up the S6 final truss segment with the fourth and final set of solar arrays, bringing the U.S. segment of the station’s useable power generating capability between 42 and 60 kilowatts. Acaba completed two of the mission’s three spacewalks, one with fellow mission specialist Steven R. Swanson and the other with fellow educator-astronaut and mission specialist Richard R. “Ricky” Arnold. During the STS-119 mission, Koichi Wakata of the Japan Aerospace Exploration Agency (JAXA) replaced NASA astronaut Sandra H. Magnus as a member of the Expedition 18 crew.

NASA astronaut Joseph M. Acaba during the third STS-119 spacewalk Acaba with the STS-119 and Expedition 18 crews The space station as seen from the departing STS-119, with the newly added S6 truss segment and solar arrays

Left: NASA astronaut Joseph M. Acaba during the third STS-119 spacewalk. Middle: Acaba, front row at right, with the STS-119 and Expedition 18 crews. Right: The space station as seen from the departing STS-119, with the newly added S6 truss segment and solar arrays, at right.

For his second visit to the station, Acaba stayed for 125 days as part of Expeditions 31 and 32, launching in May 2012 from Kazakhstan aboard Soyuz TMA-04M. A week after arriving, Acaba and his crewmates welcomed the first commercial vehicle to dock with the space station, the SpaceX Dragon cargo resupply vehicle on its Demo-2 mission carrying food, water, scientific experiments and other supplies. The Expedition 31 crew loaded the Dragon spacecraft with cargo and experiment samples for return to Earth. The crew observed and photographed a rare celestial event, a transit of Venus across the Sun on June 5. In addition to conducting numerous science experiments, Acaba helped fire prevention icon Smokey the Bear celebrate his 68th birthday.

NASA astronaut Joseph M. Acaba with his Expedition 31 crewmates inside the SpaceX Dragon resupply vehicle NASA astronaut Joseph M. Acaba running on the COLBERT treadmill. NASA astronaut Joseph M. Acaba refracted in a globule of water.

Left: NASA astronaut Joseph M. Acaba, top right, with his Expedition 31 crewmates inside the SpaceX Dragon resupply vehicle. Middle: Acaba running on the COLBERT treadmill. Right: Acaba refracted in a globule of water.

NASA astronaut Joseph M. Acaba drawing a blood sample from Akihiko Hoshide of the Japan Aerospace Exploration Agency NASA astronaut Joseph M. Acaba with a toy Smokey the Bear in the Cupola to help celebrate the forest fire prevention icon’s 68th birthday NASA astronaut Joseph M. Acaba, lower right, with this Expedition 32 crewmates.

Left: NASA astronaut Joseph M. Acaba, right, drawing a blood sample from Akihiko Hoshide of the Japan Aerospace Exploration Agency. Middle: Acaba with a toy Smokey the Bear in the Cupola to help celebrate the forest fire prevention icon’s 68th birthday. Right: Acaba, lower right, with this Expedition 32 crewmates.

Acaba returned to the space station five years later as a member of Expedition 53 and 54, launching in September 2017, aboard Soyuz MS-06 Acaba joined NASA astronaut Randolph J. “Randy” Bresnik for a nearly seven-hour spacewalk to lubricate the newly installed replacement Latching End Effector on the SSRMS. Acaba continued with the research program and celebrated his Puerto Rican heritage with several events. He returned to Earth after a 168-day flight. Over his three missions, Acaba accumulated 306 days in space and nearly 20 hours in spacewalk time.

NASA astronaut Joseph M. Acaba conducting an experiment in the Microgravity Sciences Glovebox. Acaba showing Puerto Rico pride During a spacewalk, Acaba is lubricating the Candarm2 Latching End Effector Acaba with his Expedition 53 crewmates.

Left: NASA astronaut Joseph M. Acaba conducting an experiment in the Microgravity Sciences Glovebox. Middle left: In the Cupola, Acaba showing Puerto Rico pride. Middle right: During a spacewalk, Acaba is lubricating the Candarm2 Latching End Effector. Right: Acaba, left, with his Expedition 53 crewmates.

NASA astronaut Joseph M. Acaba working with the Biological Research in Canisters experiment. Acaba speaking with the Puerto Rico Institute of Robotics. During the holidays, Acaba participating in a parranda by video

Left: NASA astronaut Joseph M. Acaba working with the Biological Research in Canisters experiment. Middle left: Acaba speaking with the Puerto Rico Institute of Robotics. Middle right: During the holidays, Acaba participating in a parranda by video. Right: Acaba, upper left, with his Expedition 54 crewmates.

José M. Hernández

Selected in 2004 as a NASA astronaut, José M. Hernández made his single visit to the space station during the STS-128 mission. Launched aboard space shuttle Discovery in August 2009, Hernández operated both the shuttle and station robotic arms to move the Leonardo MPLM back and forth and translate astronauts during the mission’s three spacewalks. He participated in the transfer and installation of the three systems racks and the three research racks aboard the orbiting laboratory. STS-128 also completed the final shuttle-based crew exchange, with Stott replacing Kopra as an Expedition 20 crew member. In collaboration with Amazon Studios, NASA is helping chronicle Hernández’ life and career through the film “A Million Miles Away,” telling the story of his journey from migrant farmer to NASA space explorer.

NASA astronaut José M. Hernández operating the shuttle’s robotic arm to transfer the Leonardo Multipurpose Logistics Module (MPLM) to the station. NASA astronaut José M. Hernández operating the station’s robotic arm to return the MPLM to the shuttle’s payload bay. NASA astronaut José M. Hernández with the STS-128 and Expedition 20 crews

Left: NASA astronaut José M. Hernández operating the shuttle’s robotic arm to transfer the Leonardo Multipurpose Logistics Module (MPLM) to the station. Middle: Hernández operating the station’s robotic arm to return the MPLM to the shuttle’s payload bay. Right: Hernández, front row center, with the STS-128 and Expedition 20 crews.

Serena M. Auñón-Chancellor

Serena M. Auñón-Chancellor was selected as a member of NASA’s Astronaut Class of 2009 and made her first spaceflight nine years later. She launched aboard Soyuz MS-09 in June 2018and began work on the more than 300 research investigations she carried out during her stay aboard the orbiting laboratory. Auñón-Chancellor returned to Earth after completing a 197-day flight.

NASA astronaut Serena M. Auñón-Chancellor conducting the AngieX Cancer Therapy experiment in the Microgravity Sciences Glovebox. NASA astronaut Serena M. Auñón-Chancellor completing a session of the Eye Exam NASA astronaut Serena M. Auñón-Chancellor posing with her Expedition 56 crewmates in the Harmony Node 2 module.

Left: NASA astronaut Serena M. Auñón-Chancellor conducting the AngieX Cancer Therapy experiment in the Microgravity Sciences Glovebox. Middle: Auñón-Chancellor completing a session of the Eye Exam – Fundoscope experiment to help understand vision changes in microgravity. Right: Auñón-Chancellor, top, posing with her Expedition 56 crewmates in the Harmony Node 2 module.

NASA astronaut Serena M. Auñón-Chancellor working on the BioServe Protein Crystalography-1 experiment Expedition 57 crew members in their best Halloween outfits NASA astronaut Serena M. Auñón-Chancellor and her Expedition 57 crewmates in the Destiny module

Left: NASA astronaut Serena M. Auñón-Chancellor working on the BioServe Protein Crystalography-1 experiment. Middle: Expedition 57 crew members in their best Halloween outfits – Sergei V. Prokopiev of Roscosmos, left, as Elvis, ESA astronaut Alexander Gerst as Darth Vader, and Auñón-Chancellor as a mad scientist. Right: Auñón-Chancellor and her Expedition 57 crewmates in the Destiny module.

Francisco “Frank” C. Rubio

Selected as an astronaut by NASA in 2017, Dr. Francisco “Frank” C. Rubio began his first trip to space in September 2022, with Russian cosmonauts Sergei V. Prokopyev and Dmitri A. Petelin aboard Soyuz MS-22, for a planned six-month stay aboard the space station. A leak aboard their Soyuz MS-22 spacecraft in December resulted in the loss of its coolant, and they could no longer rely on it to return to Earth. Roscosmos sent the replacement Soyuz MS-23 to the station in February 2023. The incident extended their mission to over one year. On Sept. 11, Rubio broke the record of 355 days for the longest single flight by an American astronaut, set by Mark T. Vande Hei in March 2022. Prokopyev, Petelin, and Rubio landed on Sept. 27 after a 371-day flight, the longest aboard the space station.

NASA astronaut Francisco “Frank” C. Rubio receives his gold astronaut pin from Japan Aerospace Exploration Agency astronaut and fellow Expedition 68 crew member Koichi Wakata NASA astronaut Francisco “Frank” C. Rubio with Russian cosmonauts Sergey V. Prokopyev and Dmitri A. Petelin with a cake with “356” written on it to signify they surpassed the previous record
of 355 days as the longest flight aboard the space station.

Left: Shortly after arriving at the space station, NASA astronaut Francisco “Frank” C. Rubio receives his gold astronaut pin from Japan Aerospace Exploration Agency astronaut and fellow Expedition 68 crew member Koichi Wakata. Middle: Rubio during one of his two spacewalks. Right: Rubio, left, with Russian cosmonauts Sergey V. Prokopyev and Dmitri A. Petelin with a cake with “356” written on it to signify they surpassed the previous record
of 355 days as the longest flight aboard the space station.

To be continued…

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Kelli Mars

NASA’s Modern History Makers: Carlos Garcia-Galan

NASA’s Modern History Makers: Carlos Garcia-Galan

4 min read

NASA’s Modern History Makers: Carlos Garcia-Galan

Carlos Garcia-Galan poses in front of the American flag in the Electric Propulsion and Power Laboratory at NASA’s Glenn Research Center. He has a serious expression is wearing a blue long-sleeve shirt with the Artemis program logo and black pants.
Carlos Garcia-Galan poses in front of the American flag in the Electric Propulsion and Power Laboratory at NASA’s Glenn Research Center.
Credit: NASA/Bridget Caswell

As a little boy in Málaga, Spain, Carlos Garcia-Galan had his sights set on the Moon, Mars, and beyond.

“It’s something that called to me from the very beginning. I remember listening to the space shuttle countdowns and watching the launches on television,” said Garcia-Galan, European Service Module (ESM) Integration Office manager for NASA’s Orion program. “The entire sky would light up at night.”

Garcia-Galan wanted to be part of the team working behind the scenes to send astronauts on challenging missions to distant destinations. But there were few opportunities to work in space exploration from his home country, he said. To pursue his dreams, he’d first have to cross the Atlantic Ocean.

“Working for NASA was my only objective,” Garcia-Galan said. “My dad was a pilot, and my mom was a flight attendant. So, I had this adventure thing already, and I traveled a lot growing up because of them.”

Garcia-Galan came to America his senior year of high school as an exchange student in New Jersey, later attending the Florida Institute of Technology’s space science program. He graduated with degrees in space science and electrical engineering.

“As I was graduating with my second degree, all of my friends from the space science program had already graduated and started working in Mission Operations at NASA’s Johnson Space Center,” Garcia-Galan said. “NASA was just about to fly the first module of the International Space Station, so I was able to get a job before I finished my degree. It was great timing.”

At Johnson, Garcia-Galan worked as a flight controller for the space station, managing electrical power systems. He left NASA to broaden his knowledge by working in industry but eventually returned. Now, he works on the European Service Module — the powerhouse that provides electricity, water, oxygen, nitrogen, and propulsion to the Orion spacecraft. Proven during Artemis I, Orion will carry astronauts to the Moon and back during future Artemis missions.

The Orion crew module’s European Service Module is the spacecraft’s powerhouse, supplying it with electricity, propulsion, thermal control, air, and water in space.
Credit: NASA/Amanda Stevenson

Garcia-Galan manages the ESM and the team working with European counterparts to design, build, and fully integrate the mission-specific modules with their Orion spacecraft.

“It’s hard enough to build spacecraft across the United States with all the contractors; imagine doing this across different continents,” he said. “I want to make sure we’re one team.”

When the modules arrive from Europe, his team ensures that they are ready for pre-flight tests and, ultimately, the mission.

“On my team, I have engineers who represent different disciplines,” Garcia-Galan said. “The ESM is like its own spacecraft, so we have everything from propulsion to mechanisms to thermal systems. I keep the whole team synchronized and working to our full potential.”

Garcia-Galan encourages others interested in space exploration to pursue their interests, no matter where they are from.

“If you want to be part of something bigger than yourself — something that takes an entire team of people across different countries — space exploration is a great place to exercise that,” Garcia-Galan said. “We have engineers, communicators, teachers, and astronauts, and everybody is working toward the same goal. You can be part of that. Just be persistent, have a goal in mind, don’t get turned away by adversities, and you may end up here at NASA.”

NASA is in a Golden Era of aeronautics and space exploration. In partnership with commercial and private businesses, NASA is currently making history with significant missions such as Artemis, Quesst, and electrified aviation. The NASA’s Modern History Makers series highlights members of NASA Glenn’s workforce who make these remarkable missions possible.

Jacqueline Minerd
NASA’s Glenn Research Center

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Kelly M. Matter

Tuesday Sees Space Physics, Human Research, and Spacewalk Preps

Tuesday Sees Space Physics, Human Research, and Spacewalk Preps

Astronaut Loral O'Hara shows off spacewalking tools aboard the International Space Station.
Astronaut Loral O’Hara shows off spacewalking tools aboard the International Space Station.

The Expedition 70 crew worked throughout Tuesday on space physics and human research aboard the International Space Station. Two astronauts are also gearing up for a spacewalk on Thursday to determine if microorganisms can survive the harsh environment of outer space.

Tuesday morning, the orbital residents focused their science activities on a variety of physics research hardware. NASA astronaut Loral O’Hara installed new components and reconnected power and data cables on the Cold Atom Lab, a device that observes the quantum behavior of atoms chilled to near absolute zero. Flight Engineer Satoshi Furukawa of JAXA (Japan Aerospace Exploration Agency) set up combustion experiment gear in the Kibo laboratory module to study how microgravity affects flames and improve fire safety on spacecraft.

O’Hara then joined fellow NASA Flight Engineer Jasmin Moghbeli in the Columbus laboratory module for vein scans. Moghbeli operated the Ultrasound 2 device and scanned O’Hara’s neck, shoulder, and leg veins with assistance from doctors on the ground.

At the end of the day, both astronauts joined up with Furukawa and Commander Andreas Mogensen of ESA (European Space Agency) and discussed robotics procedures planned for Thursday’s spacewalk. Moghbeli and Furukawa will be at the controls of the Canadarm2 robotic arm assisting O’Hara and Mogensen when they exit the station on Thursday for a six-hour spacewalk that starts at 10 a.m. EDT.

Mogensen and O’Hara earlier worked in the Quest airlock organizing the spacewalking tools they will use on Thursday to swab station surfaces and determine if microbes can live in the external conditions of microgravity. Moghbeli and Furukawa trained on a computer for the robotics maneuvers necessary to support the spacewalkers.

Two cosmonauts worked on a pair of technology studies exploring 3D printing and space navigation on Tuesday. Flight Engineer Nikolai Chub tested the on-demand manufacturing, or 3D printing, of tools in microgravity to help crews become less dependent on supplies launched from Earth. Flight Engineer Konstantin Borisov photographed landmarks on Earth for an experiment collecting data to improve high-precision data for determining the location of the space station.

Veteran cosmonaut Oleg Kononenko spent Tuesday working inside the Progress 85 (85P) cargo craft docked to the aft port of the Zvezda service module. The five-time station visitor first transferred water stowed inside the 85P into liquid containers aboard the Roscosmos segment of the orbiting lab. Afterward, Kononenko unpacked cargo from the 85P, stowed the new supplies in the appropriate station modules, and updated inventory systems.

The coolant leak from a backup radiator on the station’s Nauka Multipurpose Laboratory Module (MLM) has ceased, as was reported by Roscosmos flight controllers and evidenced by NASA external station camera views, which show only residual coolant droplets.

The primary radiator on Nauka continues to work normally, providing full cooling to the module with no impacts to the crew or to space station operations.

The radiator was delivered to the space station on the Rassvet module during space shuttle mission STS-132 in 2010. It was transferred to the Nauka during a Roscosmos spacewalk in April.

Teams on the ground continue to investigate the cause of the leak, and additional updates will be made as available.


Learn more about station activities by following the space station blog@space_station and @ISS_Research on X, as well as the ISS Facebook and ISS Instagram accounts.

Get weekly video highlights at: https://roundupreads.jsc.nasa.gov/videoupdate/

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Mark Garcia

5 Things to Know About NASA’s Deep Space Optical Communications

5 Things to Know About NASA’s Deep Space Optical Communications

NASA’s DSOC is composed of a flight laser transceiver attached to Psyche and a ground system that will send and receive laser signals. Clockwise from top left: the Psyche spacecraft with DSOC attached, flight laser transceiver, downlink ground station at Palomar, and downlink detector.
NASA/JPL-Caltech

Slated to launch on Oct. 12 with the Psyche mission, DSOC will demonstrate technologies enabling the agency to transmit higher data rates from deep space.

NASA’s pioneering Deep Space Optical Communications (DSOC) experiment will be the first demonstration of laser, or optical, communications from as far away as Mars. Launching with NASA’s Psyche mission to a metal-rich asteroid of the same name on Thursday, Oct. 12, DSOC will test key technologies designed to enable future missions to transmit denser science data and even stream video from the Red Planet.

Here are five things to know about this cutting-edge technology demonstration:

1. DSOC is the first time NASA will test how lasers could increase data transmission from deep space.

Until now, NASA has used only radio waves to communicate with missions that travel beyond the Moon. Much like fiber optics replacing old telephone lines on Earth as demand for data grows, going from radio communications to optical communications will allow increased data rates throughout the solar system, with 10 to 100 times the capacity of state-of-the-art systems currently used by spacecraft. This will better enable future human and robotic exploration missions, along with supporting higher-resolution science instruments.

Learn more about how DSOC will be used to test high-bandwidth data transmission beyond the Moon for the first time – and how it could transform deep space exploration. Credit: NASA/JPL-Caltech

2. The tech demo involves equipment both in space and on Earth.

The DSOC flight laser transceiver is an experiment attached to NASA’s Psyche spacecraft, but Psyche relies on traditional radio communications for mission operations. The laser transceiver features both a near-infrared laser transmitter to send high-rate data to Earth and a sensitive photon-counting camera to receive a laser beam sent from Earth. But the transceiver is just one part of the technology demonstration.

There is no dedicated infrastructure on Earth for deep space optical communications, so for the purposes of DSOC, two ground telescopes have been updated to communicate with the flight laser transceiver. NASA’s Jet Propulsion Laboratory in Southern California will host the operations team, and a high-power near-infrared laser transmitter has been integrated with the Optical Communications Telescope Laboratory at JPL’s Table Mountain facility near Wrightwood, California. The transmitter will deliver a modulated laser signal to DSOC’s flight transceiver and serve as a beacon, or pointing reference, so that the returned laser beam can be accurately aimed back to Earth.

Data sent from the flight transceiver will be collected by the 200-inch (5.1-meter) Hale Telescope at Caltech’s Palomar Observatory in San Diego County, California, which has been equipped with a special superconducting high-efficiency detector array.

3. DSOC will encounter unique challenges.

DSOC is intended to demonstrate high-rate transmission of data of distances up to 240 million miles (390 million kilometers) – more than twice the distance between the Sun and Earth – during the first two years of Psyche’s six-year journey to the asteroid belt.  

The farther Psyche travels from our planet, the fainter the laser photon signal will become, making it increasingly challenging to decode the data. As an additional challenge, the photons will take longer to reach their destination, creating a lag of over 20 minutes at the tech demo’s farthest distance. Because the positions of Earth and the spacecraft will be constantly changing as the photons travel, the DSOC ground and flight systems will need to compensate, pointing to where the ground receiver (at Palomar) and flight transceiver (on Psyche) will be when the photons arrive.

4. Cutting-edge technologies will work together to make sure the lasers are on target and high-bandwidth data is received from deep space.

The flight laser transceiver and ground-based laser transmitter will need to point with great precision. Reaching their targets will be akin to hitting a dime from a mile away while the dime is moving. So the transceiver needs to be isolated from the spacecraft vibrations, which would otherwise nudge the laser beam off target. Initially, Psyche will aim the flight transceiver in the direction of Earth while autonomous systems on the flight transceiver assisted by the Table Mountain uplink beacon laser will control the pointing of the downlink laser signal to Palomar Observatory.

Integrated onto the Hale Telescope is a cryogenically cooled superconducting nanowire photon-counting array receiver, developed by JPL. The instrument is equipped with high-speed electronics for recording the time of arrival of single photons so that the signal can be decoded. The DSOC team even developed new signal-processing techniques to squeeze information out of the weak laser signals that will have been transmitted over tens to hundreds of millions of miles.

This is a close-up of the downlink detector prototype that was used to develop the detector attached to DSOC’s receiving ground station at Palomar. The active area – at the center of the dark square – measures about 0.0126 inches (0.32 millimeters) across. It can detect a billion photons per second.
NASA/JPL-Caltech

5. This is NASA’s latest optical communications project.

In 2013, NASA’s Lunar Laser Communications Demonstration tested record-breaking uplink and downlink data rates between Earth and the Moon. In 2021, NASA’s Laser Communications Relay Demonstration launched to test high-bandwidth optical communications relay capabilities from geostationary orbit so that spacecraft don’t require a direct line of sight with Earth to communicate. And last year, NASA’s TeraByte InfraRed Delivery system downlinked the highest-ever data rate from a satellite in low-Earth orbit to a ground-based receiver.

DSOC is taking optical communications into deep space, paving the way for high-bandwidth communications beyond the Moon and 1,000 times farther than any optical communications test to date. If it succeeds, the technology could lead to high-data rate communications with streaming, high-definition imagery that will help support humanity’s next giant leap: when NASA sends astronauts to Mars.

More About the Mission

DSOC is the latest in a series of optical communication demonstrations funded by NASA’s Technology Demonstration Missions (TDM) program and the agency’s Space Communications and Navigation (SCaN) program. JPL, a division of Caltech in Pasadena, California, manages DSOC for TDM within NASA’s Space Technology Mission Directorate and SCaN within the agency’s Space Operations Mission Directorate.

The Psyche mission is led by Arizona State University. JPL is responsible for the mission’s overall management, system engineering, integration and test, and mission operations. Psyche is the 14th mission selected as part of NASA’s Discovery Program, managed by the agency’s Marshall Space Flight Center in Huntsville, Alabama. NASA’s Launch Services Program, based at the agency’s Kennedy Space Center, is managing the launch service. Maxar Technologies in Palo Alto, California, provided the high-power solar electric propulsion spacecraft chassis.

For more information about DSOC, go to: https://www.jpl.nasa.gov/missions/dsoc

News Media Contacts

Ian J. O’Neill
Jet Propulsion Laboratory, Pasadena, Calif.
818-354-2649
ian.j.oneill@jpl.nasa.gov

Alise Fisher
NASA Headquarters, Washington
202-358-2546
alise.m.fisher@nasa.gov

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Naomi Hartono

NASA’s Webb Captures an Ethereal View of NGC 346

NASA’s Webb Captures an Ethereal View of NGC 346

3 min read

NASA’s Webb Captures an Ethereal View of NGC 346

This new infrared image of NGC 346 from NASA’s James Webb Space Telescope’s Mid-Infrared Instrument (MIRI) traces emission from cool gas and dust. In this image blue represents silicates and sooty chemical molecules known as polycyclic aromatic hydrocarbons, or PAHs. More diffuse red emission shines from warm dust heated by the brightest and most massive stars in the heart of the region. Bright patches and filaments mark areas with abundant numbers of protostars. This image includes 7.7-micron light shown in blue, 10 microns in cyan, 11.3 microns in green, 15 microns in yellow, and 21 microns in red (770W, 1000W, 1130W, 1500W, and 2100W filters, respectively).
Credit: NASA, ESA, CSA, STScI, N. Habel (JPL). Image Processing: P. Kavanagh (Maynooth University).

Download the full-resolution version from the Space Telescope Science Institute.

Filaments of dust and gas festoon this star-forming region in a new infrared image from MIRI.

One of the greatest strengths of NASA’s James Webb Space Telescope is its ability to give astronomers detailed views of areas where new stars are being born. The latest example, showcased here in a new image from Webb’s Mid-Infrared Instrument (MIRI), is NGC 346 – the brightest and largest star-forming region in the Small Magellanic Cloud.

The Small Magellanic Cloud (SMC) is a satellite galaxy of the Milky Way, visible to the unaided eye in the southern constellation Tucana. This small companion galaxy is more primeval than the Milky Way in that it possesses fewer heavy elements, which are forged in stars through nuclear fusion and supernova explosions, compared to our own galaxy.

Since cosmic dust is formed from heavy elements like silicon and oxygen, scientists expected the SMC to lack significant amounts of dust. However the new MIRI image, as well as a previous image of NGC 346 from Webb’s Near-Infrared Camera released in January, show ample dust within this region.

In this representative-color image, blue tendrils trace emission from material that includes dusty silicates and sooty chemical molecules known as polycyclic aromatic hydrocarbons, or PAHs. More diffuse red emission shines from warm dust heated by the brightest and most massive stars in the heart of the region. An arc at the center left may be a reflection of light from the star near the arc’s center. (Similar, fainter arcs appear associated with stars at lower left and upper right.) Lastly, bright patches and filaments mark areas with abundant numbers of protostars. The research team looked for the reddest stars, and found 1,001 pinpoint sources of light, most of them young stars still embedded in their dusty cocoons.

By combining Webb data in both the near-infrared and mid-infrared, astronomers are able to take a fuller census of the stars and protostars within this dynamic region. The results have implications for our understanding of galaxies that existed billions of years ago, during an era in the universe known as “cosmic noon,” when star formation was at its peak and heavy element concentrations were lower, as seen in the SMC.The James Webb Space Telescope is the world’s premier space science observatory.

Webb is solving mysteries in our solar system, looking beyond to distant worlds around other stars, and probing the mysterious structures and origins of our universe and our place in it. Webb is an international program led by NASA with its partners, ESA (European Space Agency) and the Canadian Space Agency.

Media Contacts:

Laura Betz
NASA’s Goddard Space Flight Center, Greenbelt, Md.
laura.e.betz@nasa.gov

Christine Pulliam
Space Telescope Science Institute, Baltimore, Md.
cpulliam@stsci.edu

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Oct 10, 2023

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steve sabia