Rusty Red Waters in Madagascar

Rusty Red Waters in Madagascar

The waters of the Betsiboka River Delta, as seen from the International Space Station, are a vibrant orange. From left to right, the river branches off into many pathways, looking almost like the roots of a tree.
NASA

Iron-rich sediment colors the red-orange waters of the Betsiboka River Delta in Madagascar in this image taken by an astronaut on the International Space Station on Sept. 30, 2023. The sediment can clog waterways in the delta’s estuarial environment, but it can also form new islands that become colonized by mangroves. Despite its rusty color, this artery of water is important for biodiversity. Within the Betsiboka River Delta, the estuary supplies food, such as seagrasses, to the endangered green turtle and vulnerable dugong, or sea cow.

Text credit: Sara Schmidt

Image Credit: NASA

Powered by WPeMatico

Get The Details…
Monika Luabeya

See SWOT Mission’s Unprecedented View of Global Sea Levels

See SWOT Mission’s Unprecedented View of Global Sea Levels

This animation shows global sea level data collected by the Surface Water and Ocean Topography satellite from July 26 to Aug. 16. Red and orange indicate higher-than-average ocean heights, while blue represents lower-than-average heights. Image Credit: NASA/JPL-Caltech

Data on sea surface heights around the world from the international Surface Water and Ocean Topography mission yields a mesmerizing view of the planet’s ocean.

The Surface Water and Ocean Topography (SWOT) satellite is sending down tantalizing views of Earth’s water, including a global composite of sea surface heights. The satellite collected the data visualized above during SWOT’s first full 21-day science orbit, which it completed between July 26 and Aug. 16.

SWOT is measuring the height of nearly all water on Earth’s surface, providing one of the most detailed, comprehensive views yet of the planet’s oceans and freshwater lakes and rivers. The satellite is a collaboration between NASA and the French space agency, CNES (Centre National d’Études Spatiales).

The animation shows sea surface height anomalies around the world: Red and orange indicate ocean heights that were higher than the global mean sea surface height, while blue represents heights lower than the mean. Sea level differences can highlight ocean currents, like the Gulf Stream coming off the U.S. East Coast or the Kuroshio current off the east coast of Japan. Sea surface height can also indicate regions of relatively warmer water – like the eastern part of the equatorial Pacific Ocean during an El Niño – because water expands as it warms.

The SWOT science team made the measurements using the groundbreaking Ka-band Radar Interferometer (KaRIn) instrument. With two antennas spread 33 feet (10 meters) apart on a boom, KaRIn produces a pair of data swaths (tracks visible in the animation) as it circles the globe, bouncing radar pulses off the water’s surface to collect surface-height measurements.

“The detail that SWOT is sending back on sea levels around the world is incredible,” said Parag Vaze, SWOT project manager at NASA’s Jet Propulsion Laboratory in Southern California. “The data will advance research into the effects of climate change and help communities around the world better prepare for a warming world.”

More About the Mission

Launched on Dec. 16, 2022, from Vandenberg Space Force Base in central California, SWOT is now in its operations phase, collecting data that will be used for research and other purposes.

SWOT was jointly developed by NASA and CNES, with contributions from CSA (Canadian Space Agency) and the UK Space Agency. JPL, which is managed for the agency by Caltech in Pasadena, California, leads the U.S. component of the project. For the flight system payload, NASA provided the KaRIn instrument, a GPS science receiver, a laser retroreflector, a two-beam microwave radiometer, and NASA instrument operations. CNES provided the Doppler Orbitography and Radioposition Integrated by Satellite (DORIS) system, the dual frequency Poseidon altimeter (developed by Thales Alenia Space), the KaRIn radio-frequency subsystem (together with Thales Alenia Space and with support from the UK Space Agency), the satellite platform, and ground operations. CSA provided the KaRIn high-power transmitter assembly. NASA provided the launch vehicle and the agency’s Launch Services Program, based at Kennedy Space Center, managed the associated launch services.

To learn more about SWOT, visit:
https://swot.jpl.nasa.gov/

News Media Contacts

Jane J. Lee / Andrew Wang
Jet Propulsion Laboratory, Pasadena, Calif.
818-354-0307 / 626-379-6874
jane.j.lee@jpl.nasa.gov / andrew.wang@jpl.nasa.gov

2023-156

Powered by WPeMatico

Get The Details…
Naomi Hartono

NASA C-130 Makes First-Ever Flight to Antarctica for GUSTO Balloon Mission

NASA C-130 Makes First-Ever Flight to Antarctica for GUSTO Balloon Mission

4 Min Read

NASA C-130 Makes First-Ever Flight to Antarctica for GUSTO Balloon Mission

NASA’s Wallops Flight Facility C-130 aircraft delivered the agency’s Galactic/Extragalactic ULDB Spectroscopic Terahertz Observatory (GUSTO) payload to McMurdo Station, Antarctica, on Oct. 28, 2023. The GUSTO mission will launch on a scientific balloon in December 2023.

Credits:
NASA/Scott Battaion

On Oct. 28, 2023, NASA’s C-130 Hercules and crew safely touched down at McMurdo Station, Antarctica, after an around-the-globe journey to deliver the agency’s Galactic/Extragalactic ULDB Spectroscopic Terahertz Observatory (GUSTO). The United States research station, operated by the National Science Foundation, is host to NASA’s Antarctic long-duration balloon campaign in which the GUSTO mission will take a scientific balloon flight beginning December 2023.

The C-130 crew, which has now completed half of the 26,400-nautical-mile round-trip journey, first stopped at Fort Cavazos, Texas, on Oct. 17, to load the GUSTO observatory and members of its instrument team. Additional stops to service the aircraft and for crew rest included Travis Air Force Base (AFB), California; Hickman AFB, Hawaii; Pago Pago, American Samoa; and Christchurch, New Zealand, before finally reaching McMurdo, Antarctica – a mere 800 miles from the South Pole.

The C-130 aircraft, a white plane with a blue strip down the side, taking off from a runway with a thick tree line in the background.
Aircraft Office teams prepare the C-130 aircraft for departure at NASA’s Wallops Flight Facility in Virginia. The aircraft will deliver the agency’s Galactic/Extragalactic ULDB Spectroscopic Terahertz Observatory (GUSTO) payload to McMurdo Station, Antarctica. The GUSTO mission will launch on a scientific balloon in December 2023.
NASA/Terry Zaperach

GUSTO, part of NASA’s Astrophysics Explorers Program, is set to fly aboard a football-stadium-sized, zero-pressure scientific balloon 55 days and beyond, on a mapping mission of a portion of the Milky Way Galaxy and nearby Large Magellanic Cloud. A telescope with carbon, oxygen, and nitrogen emission line detectors will measure the interstellar medium, the cosmic material found between stars, and trace the full lifecycle of that matter. GUSTO’s science observations will be performed in a balloon launch from Antarctica to allow for enough observation time aloft, access to astronomical objects, and solar power provided by the austral summer in the polar region.

NASA’s Wallops Flight Facility Aircraft Office in Wallops Island, Virginia, which manages the C-130, spent nearly a year in coordination efforts preparing for GUSTO’s trip to its launch site. From international clearances with agencies, cargo configurations with NASA’s Balloon Program Office, logistical support with the National Science Foundation at McMurdo, to specialized training on nontraditional navigation systems in Antarctica, the Aircraft Office developed an extensive plan to safely deliver the intricate science payload.

The first-ever mission to Antarctica for the NASA C-130 aircraft presented several long-haul cargo flight challenges. Mission managers and NASA’s Office of International and Interagency Relations (OIIR) started early to stay ahead of coordination of international flight clearances.

“We work very hard to make sure that we execute the mission at a high standard of technical competence and professionalism to maintain NASA’s international reputation,” said John Baycura, Wallops research pilot on the GUSTO mission.

Large time-zone changes challenge the crew’s circadian rhythm. Ninety hours in flight across multiple time zones requires an extra pilot and flight engineer on the mission to share the workload. Mandatory crew rest days at strategic locations, per NASA policy, ensure the crew receives enough time to rest, adjust to the schedule, and proceed safely.

NASA C-130 Delivers GUSTO Payload to Antarctica
Visit NASA’s Goddard Space Flight Center Flickr for more photos.

Unexpected weather also tops the list of most pressing challenges for this type of flight. Oceanic crossings come with the added risk of weather complicated by no radar coverage over the ocean. The crew uses DOD and civilian weather agencies to identify hazardous weather and adjust flight routes, altitude, and timings accordingly. “For the specific case of McMurdo, while en route, we called the weather shop at McMurdo Station to get a forecast update before we reached our ‘safe return’ point. Using a conservative approach, we decided whether to continue to McMurdo Station or return to Christchurch and try again the next day,” said Baycura.

For this mission, no commercial entities supported the final leg to Antarctica. U.S. Air Force C-17’s and the New York Air National Guard LC-130’s that typically transport to McMurdo Station had limited space in their schedules. By using NASA’s C-130 for this specialized cargo mission, “the balloon program gained a dedicated asset with a highly experienced crew and support team. This greatly reduced the standard project risks to schedule, cargo, and cost,” said Baycura.

For more information, visit nasa.gov/wallops.

Share

Details

Last Updated

Oct 30, 2023

Editor

Jamie Adkins

Contact

Olivia F. Littleton
olivia.f.littleton@nasa.gov

Location

Wallops Flight Facility

Powered by WPeMatico

Get The Details…
Olivia F. Littleton

The Crab Nebula Seen in New Light by NASA’s Webb

The Crab Nebula Seen in New Light by NASA’s Webb

Exquisite, never-before-seen details help unravel the supernova remnant’s puzzling history.

NASA’s James Webb Space Telescope has gazed at the Crab Nebula, a supernova remnant located 6,500 light-years away in the constellation Taurus. Since the recording of this energetic event in 1054 CE by 11th-century astronomers, the Crab Nebula has continued to draw attention and additional study as scientists seek to understand the conditions, behavior, and after-effects of supernovae through thorough study of the Crab, a relatively nearby example.

Image: Crab Nebula

The Crab Nebula. An oval nebula with complex structure against a black background. On the nebula’s exterior, particularly at the top left and bottom left, lie curtains of glowing red and orange fluffy material. Its interior shell shows large-scale loops of mottled filaments of yellow-white and green, studded with clumps and knots. Translucent thin ribbons of smoky white lie within the remnant’s interior, brightest toward its center. The white material follows different directions throughout, including sometimes sharply curving away from certain regions within the remnant. A faint, wispy ring of white material encircles the very center of the nebula. Around and within the supernova remnant are many points of blue, red, and yellow light.
This image by NASA’s James Webb Space Telescope’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument) reveals new details in infrared light. The supernova remnant is comprised of several different components, including doubly ionized sulfur (represented in red-orange), ionized iron (blue), dust (yellow-white and green), and synchrotron emission (white). In this image, colors were assigned to different filters from Webb’s NIRCam and MIRI: blue (F162M), light blue (F480M), cyan (F560W), green (F1130W), orange (F1800W), and red (F2100W).
: Image: NASA, ESA, CSA, STScI, T. Temim (Princeton University).

Using Webb’s NIRCam (Near-Infrared Camera) and MIRI (Mid-Infrared Instrument), a team led by Tea Temim at Princeton University is searching for answers about the Crab Nebula’s origins.

“Webb’s sensitivity and spatial resolution allow us to accurately determine the composition of the ejected material, particularly the content of iron and nickel, which may reveal what type of explosion produced the Crab Nebula,” explained Temim.

Image: Webb and Hubble

A side-by-side-comparison of the Crab Nebula as seen by the Hubble Space Telescope in optical light (left) and the James Webb Space Telescope in infrared light (right). In both images, the oval nebula’s complex structure lies against a black background. On the nebula’s exterior, particularly at the top left and bottom left, lie curtains of glowing red and orange fluffy material. Interior to this outer shell lie large-scale loops of mottled filaments of yellow-white and green, studded with clumps and knots. In the Hubble image, the central interior of the nebula glows brightly, while the Webb image shows translucent thin ribbons of smoky white in the same area. Around and within the supernova remnant are many points of blue-white light in the Hubble image, and blue, red, and yellow light in the Webb image.
This side-by-side comparison of the Crab Nebula as seen by the Hubble Space Telescope in optical light (left) and the James Webb Space Telescope in infrared light (right) reveals different details. By studying the recently collected Webb data, and consulting previous observations of the Crab taken by other telescopes like Hubble, astronomers can build a more comprehensive understanding of this mysterious supernova remnant.
: Hubble Image: NASA, ESA, J. Hester, A. Loll (Arizona State University); Webb Image: NASA, ESA, CSA, STScI, T. Temim (Princeton University).

At first glance, the general shape of the supernova remnant is similar to the optical wavelength image released in 2005 from NASA’s Hubble Space Telescope: In Webb’s infrared observation, a crisp, cage-like structure of fluffy gaseous filaments are shown in red-orange. However, in the central regions, emission from dust grains (yellow-white and green) is mapped out by Webb for the first time.

Additional aspects of the inner workings of the Crab Nebula become more prominent and are seen in greater detail in the infrared light captured by Webb. In particular, Webb highlights what is known as synchrotron radiation: emission produced from charged particles, like electrons, moving around magnetic field lines at relativistic speeds. The radiation appears here as milky smoke-like material throughout the majority of the Crab Nebula’s interior.

This feature is a product of the nebula’s pulsar, a rapidly rotating neutron star. The pulsar’s strong magnetic field accelerates particles to extremely high speeds and causes them to emit radiation as they wind around magnetic field lines. Though emitted across the electromagnetic spectrum, the synchrotron radiation is seen in unprecedented detail with Webb’s NIRCam instrument.

Video: Tour of Webb Image


This video tours the Crab Nebula, a supernova remnant that lies 6,500 light-years away in the constellation Taurus. Despite this distance from Earth, the Crab Nebula is a relatively close example of what remains after the explosive death of a massive star. NASA’s James Webb Space Telescope captures in unprecedented detail the various components that comprise the Crab, including the expanding cloud of hot gas, cavernous filaments of dust, and synchrotron emission. The synchrotron emission is the result of the nebula’s pulsar: a rapidly rotating neutron star that is located in the center.

To locate the Crab Nebula’s pulsar heart, trace the wisps that follow a circular ripple-like pattern in the middle to the bright white dot in the center. Farther out from the core, follow the thin white ribbons of the radiation. The curvy wisps are closely grouped together, outlining the structure of the pulsar’s magnetic field, which sculpts and shapes the nebula.

At center left and right, the white material curves sharply inward from the filamentary dust cage’s edges and goes toward the neutron star’s location, as if the waist of the nebula is pinched. This abrupt slimming may be caused by the confinement of the supernova wind’s expansion by a belt of dense gas.

The wind produced by the pulsar heart continues to push the shell of gas and dust outward at a rapid pace. Among the remnant’s interior, yellow-white and green mottled filaments form large-scale loop-like structures, which represent areas where dust grains reside.

The search for answers about the Crab Nebula’s past continues as astronomers further analyze the Webb data and consult previous observations of the remnant taken by other telescopes. Scientists will have newer Hubble data to review within the next year or so from the telescope’s reimaging of the supernova remnant. This will mark Hubble’s first look at emission lines from the Crab Nebula in over 20 years, and will enable astronomers to more accurately compare Webb and Hubble’s findings.

Learn More: Crab Nebula

Want to learn more? Through NASA’s Universe of Learning, part of NASA’s Science Activation program, explore images of the Crab Nebula from other telescopes, a 3D visualization, data sonification, and hands-on activities. These resources and more information about supernova remnants and star lifecycles can be found at NASA’s Universe of Learning.

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.

NASA’s Universe of Learning materials are based upon work supported by NASA under cooperative agreement award number NNX16AC65A to the Space Telescope Science Institute, working in partnership with Caltech/IPAC, Center for Astrophysics | Harvard & Smithsonian, and Jet Propulsion Laboratory.

Media Contacts

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

Hannah Braun hbraun@stsci.edu , Christine Pulliamcpulliam@stsci.edi
Space Telescope Science Institute, Baltimore, Md.

Downloads

Download full resolution images for this article from the Space Telescope Science Institute.

Related Information

Neutron Stars – https://universe.nasa.gov/stars/types/#otp_neutron_stars

Universe/Stars Basics – https://universe.nasa.gov/stars/basics/

Universe Basics https://universe.nasa.gov/universe/basics/

More Webb News – https://science.nasa.gov/mission/webb/latestnews/

More Webb Images – https://science.nasa.gov/mission/webb/multimedia/images/

Webb Mission Page – https://science.nasa.gov/mission/webb/

En Español

Ciencia de la NASA

NASA en español 

Space Place para niños

Share

Details

Last Updated

Oct 30, 2023

Editor

Steve Sabia

Contact

Location

NASA Goddard Space Flight Center

Powered by WPeMatico

Get The Details…
steve sabia

NASA’s Modern History Makers: Sarah Tipler

NASA’s Modern History Makers: Sarah Tipler

5 min read

NASA’s Modern History Makers: Sarah Tipler

Sarah Tipler poses in front of a mural of NASA astronaut Michael Anderson in Plattsburgh, New York. She is wearing a red jacket and a white shirt with black cats on it and is looking toward the sky. The colorful painted mural features Anderson wearing an orange spacesuit, the shuttle Columbia, and a view of Earth. The sky is blue and grass with purple flowers can be seen in front of the mural and behind Tipler.
Sarah Tipler poses in front of a mural of NASA astronaut Michael Anderson in Plattsburgh, New York.
Credit: Sarah Tipler

Growing up, Sarah Tipler always felt out of place. She had trouble with time management, structuring her day, and focusing her attention, but she didn’t know why.

“For all of my undergraduate education, I really struggled to keep up despite understanding the material,” Tipler said. “It took a ton of work to make good grades happen, including asking for extensions and pulling last-minute all-nighters. I used to beat myself up for my apparent lack of self-control.”

Tipler enrolled in college after high school but withdrew after facing depression and other mental health challenges. A few years later, she took another stab at school to become a French teacher but found the career wasn’t for her. After realizing studying computer science and engineering fascinated her, she applied for a Pathways internship at NASA’s Glenn Research Center in Cleveland.

“At NASA, I knew that I was working on the kinds of projects that are helping advance humanity’s knowledge of the universe and the world we live in,” she said.

It wasn’t until transitioning to a full-time computer scientist job at Glenn that she finally got some answers about herself.

“At NASA, I was feeling happy, I was in a great place in my life, and I was excited about where I was, but I was still struggling to effectively manage my workload,” she said. “That’s what led me to seek help and obtain a diagnosis of ADHD [attention-deficit/hyperactivity disorder], which has really helped me understand a lot of the issues that I’ve had in my life and put a lot of things in a different perspective.”

Tipler’s colleagues provided her encouragement and a support system, and she’s now helping NASA take its next giant leap with the Artemis missions.

Tipler’s team develops code that models the power systems of the International Space Station, the Orion spacecraft, and the Power and Propulsion Element (PPE) that will help propel Gateway, NASA’s future lunar space station. This SPACE (or system power analysis for capability evaluation) code can predict how much power is generated by solar arrays and determine whether it is sufficient to support important spacecraft systems, like life support and propulsion.

For example, throughout Gateway’s journey, the solar arrays that generate power for PPE won’t always be able to face the sun and generate maximum energy.

“We need to make sure that when Gateway is using its thrusters, which require a lot of electrical power, we’ll have enough for the rest of the spacecraft,” Tipler explains.

Tipler’s team is also developing a graphical user interface that will make it easier for the Flight Operations Directorate at NASA’s Johnson Space Center in Houston to use the code.

“It’s an incredible feeling to know that I’m some small part of that giant puzzle,” she said. “It makes all of the challenges and obstacles that I go through feel worth it when I get to sit down and look at things from the big picture.”

Learning to navigate ADHD has been a long journey, Tipler says, but her family, friends, fiancé, and five rambunctious cats have been there to cheer her up and encourage her. In addition, being able to work remotely from her home in northern New York has been critical to her success at work.

“I have found that teleworking and being fully remote has really helped with my ADHD because my focus isn’t always consistent, so this adds a lot more flexibility into my work life and has helped me be the best productive person I can be,” she said.

Ensuring open communication with coworkers and having conversations about expectations has also kept Tipler on the right track, and she has found ways to thrive.

“I think there are some really cool, unique perspectives that people living with different disabilities can bring to the workplace in the ways we think differently or work to overcome obstacles or problems,” she said.

Often, practices that help people with disabilities can be beneficial to all workers, Tipler says, such as offering written agendas and notes instead of just verbal information or being open to new workplace approaches.

“You don’t always need to know what someone is dealing with to make things better for everyone,” she said.

Tipler wants people working to overcome their own obstacles to know that they are not alone and to remind others that some disabilities, like ADHD, can seem invisible.

“Remember that you never know what someone else is going through,” she said. “The best approach is to operate with kindness.”

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.

Ellen Bausback

NASA’s Glenn Research Center

Powered by WPeMatico

Get The Details…
Kelly M. Matter