Archivos de la categoría ISS News

DNA Repairs, Self-Replicating Materials Highlight Thursday’s Research

Thursday’s science schedule aboard the International Space Station focused primarily on DNA and physics research including ongoing Earth photography sessions. The Expedition 63 trio also maintained life support gear and packed a Russian cargo ship.

The space environment affects a variety of biological and physical phenomena adapted and designed for Earth’s gravity and atmosphere. Organisms from microbes to humans experience a variety of critical changes in microgravity. Fuels, materials and a host of other physical conditions also go through a series of important modifications. NASA and its international partners study these effects to ensure the health of astronauts and safety of spacecraft planned for future missions to the Moon, Mars and beyond.

DNA studies have been ongoing for years on the station to understand the long-term impacts of radiation and weightlessness on biology. This morning, Commander Chris Cassidy set up and checked out a DNA-monitoring device for the Genes In Space-6 experiment. The portable, handheld miniPCR-16 device, also used in Earth laboratories, provides insight into the repair mechanisms of DNA-damaged cells caused by space radiation.

Cassidy then turned his attention to unique materials that self-assemble and self-replicate with powerful implications for future space voyages. He set up a specialized microscope during the afternoon to observe particles suspended in fluids that self-organize into crystalline structures. The experiment takes place inside the Fluids Integrated Rack and explores the possibilities of 3D printing and additive manufacturing in microgravity.

The two station cosmonauts from Russia, Anatoly Ivanishin and Ivan Vagner, swapped out and activated Earth observation hardware to continue monitoring and forecasting natural and man-made catastrophes. Ivanishin then serviced communications equipment before cleaning ventilation filters in the Zarya module. Vagner contributed to the ventilation system cleaning inside the Zvezda service module while also loading the Progress 75 resupply ship with trash and discarded gear.

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Mark Garcia

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Science Hardware Upkeep All Day on Station

The International Space Station’s advanced microgravity research systems continue to be serviced today ensuring innovative results and insights to benefit humans on and off the Earth.

The Kibo lab module from JAXA (Japan Aerospace Exploration Agency) contains an airlock used to transfer science experiments into the vacuum of space. Expedition 63 Commander Chris Cassidy installed a variety of components and connected cables this morning that operate the airlock and control the pressure.

JAXA’s robotic arm grapples and maneuvers the experiments back and forth from the airlock to an external pallet. Air pressure inside the airlock is turned off and on as materials exposure investigations are installed outside Kibo or retrieved for analysis.

Cassidy also checked a memory card for a laptop computer that runs the COLBERT treadmill inside the Tranquility module. The NASA astronaut then photographed the front panel display of a GLACIER science freezer for review on the ground. Finally, he cleaned dust and debris inside a server supporting the MUSES Earth-imaging platform.

Cosmonauts Anatoly Ivanishin and Ivan Vagner spent a good portion of Wednesday checking Russian power supply connections and battery temperatures. Ivanishin then researched ways to optimize interactions between station crews and mission controllers from around the world. Vagner also worked on fluid and pressure checks inside the Progress 76 resupply ship docked to the Pirs docking compartment.

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Mark Garcia

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Biology, Physics Hardware and Software Updates During Pilot Studies

The Expedition 63 crew tended to a variety of science hardware Tuesday servicing the gear and updating software that operates the advanced research devices. Fitness tests and ongoing lab maintenance rounded out the schedule aboard the International Space Station.

A trio of science facilities supporting physics and biology investigations received hands-on attention throughout the day. Commander Chris Cassidy first connected a laptop computer to the Electrostatic Levitation Furnace (ELF) and updated the software that runs the extreme temperature research device.

The veteran NASA astronaut also set up the Confocal Space Microscope, which observes cellular and tissue functions using fluorescence and spatial filtering techniques. Cassidy then replaced filters inside the Life Science Glovebox (LSG) which enables two crew members to conduct biology and technology research at the same time.

The ELF, among numerous other research facilities, is housed inside the Columbus lab module from the European Space Agency (ESA). The specialized confocal and wide-field microscope and the LSG reside in JAXA’s (Japan Aerospace Exploration Agency) Kibo lab module. Columbus has been attached to the station since February 2008, while the three-part Kibo was installed over a period between March and July 2008.

Today was cosmonaut Ivan Vagner’s turn to take a fitness test on the Zvezda service module’s treadmill. The once-a-month physical evaluation sends data down to researchers collected from sensors attached to a crew member during the 90-minute exercise. Vagner also studied ways cosmonauts might pilot spacecraft and robots on future planetary missions.

Cosmonaut Anatoly Ivanishin deactivated gear that observed Earth’s nighttime atmosphere in near-ultraviolet wavelengths. The three-time station resident then spent the rest of the day inspecting Russian life support gear.

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Mark Garcia

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Crew Sets Up Advanced Science Gear, Loads Cargo Ship With Trash

The Expedition 63 crew started the workweek checking out hardware supporting life science, combustion research and ongoing Earth observations. A Russian cargo craft docked to the International Space Station is also being packed with old gear for disposal toward the end of the year.

The multitude of microgravity research that takes place every day on the orbiting lab, requires regular maintenance and monitoring by the crew or scientists on the ground. The ongoing research supports innovative applications and insights benefitting Earth and space industries.

Today, Commander Chris Cassidy serviced an advanced space microscope and swapped components supporting safe combustion investigations. Cassidy first configured the Light Microscopy Module, part of the Fluids Integrated Rack, which supports basic physics and biology research. Next, the veteran NASA astronaut replaced a burner and igniter tip inside the Combustion Integrated Rack that supports fuel and flame research.

On the Russian side of the space station, two cosmonauts focused on their slate of space research and lab maintenance.

Veteran Roscosmos Flight Engineer Anatoly Ivanishin tested battery temperatures and connections then took a 90-minute fitness test on the Zvezda service module’s treadmill. During the afternoon, Ivanishin changed out dust filters before activating hardware that measures the Earth’s nighttime atmosphere in near-ultraviolet wavelengths.

Cosmonaut Ivan Vagner, five weeks away from ending his first long-term space mission, joined Ivanishin for the morning battery inspections. Afterward, the first-time space flyer packed Russia’s Progress 75 cargo craft, docked to Zvezda’s rear port, with old and discarded station gear for disposal at the beginning of December.

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

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Mark Garcia

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Research into Fluid Dynamics, Astronaut Health and Earth Wraps Up Science-Centered Week

Aboard the International Space Station, a flurry of research activity is underway before the Expedition 63 crew winds down to the weekend, along with essential maintenance tasks to ensure the longevity of the orbiting laboratory.

Commander Chris Cassidy crossed off a few housekeeping items, like replacing the carbon dioxide sensor for the Cell Biology Experiment Facility and stowing Rodent Research hardware for return on a future SpaceX mission, in addition to completing additional tests runs and closeout activities in support of the Fluidics experiment. Future spacecraft and their fuel systems will get a boost from this investigation, which uses the measurement of liquid displacement within a sphere to gather observations in how fluids behave inside a fuel tank.

Cassidy also spent time working with the Advanced Plant Habitat mounted in the station’s EXPRESS rack to gather sound-level measurements. The habitat itself provides a large and enclosed chamber with stringent environmental controls, designed to give commercial and other bioscience research suitable conditions in which to grow despite the hostile environment to the station’s exterior: space.

Flight Engineers Anatoly Ivanishin and Ivan Vagner, cosmonauts from the Russian space agency Roscosmos, worked together to complete life-support hardware maintenance tasks such as inspecting and inventorying the gear. Ivanishin continued the routine chores, cleaning out the ventilation system within the Zvezda service module and also doing a check of Russian video-recording equipment.

After setting up an electrocardiogram for a 24-hour survey of his own heart health, Vagner terminated the test. In addition to investigating the effects of long-duration space travel on astronauts, he continued with setup and observation of our own planet using Earth photography. While the universe remain the ultimate unknown, there are still phenomena on Earth that scientists do not fully understand. For those particular mysteries, observations from station could prove eminently useful.

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

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Catherine Williams

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