Author: Abby Graf

Immunology, Space Biology, and Cleaning for Crew on Thursday

 

The southern coast of Africa is pictured from the International Space Station's "window to the world," or cupola, as it soared 265 miles above.
The southern coast of Africa is pictured from the International Space Station’s “window to the world,” or cupola, as it soared 265 miles above.

Expedition 71 continued microgravity research on Thursday as the crew spent the day on immunology work and space biology. Two crew members also worked on the orbital upkeep tasks that began earlier in the week.

Aboard the International Space Station, one investigation, Immunity Assay, takes a closer look at immune changes that happen in flight through the processing of biological samples. NASA Flight Engineer Matthew Dominick started the day by collecting samples for Immunity Assay, then NASA Flight Engineer Jeanette Epps processed and installed the sample tubes into Kubik. Understanding how the human body reacts to spaceflight is one step in ensuring spacefarers stay safe and healthy on future long-duration missions in low Earth orbit, to the Moon, and eventually, to Mars.

After immunology work wrapped, Epps moved into the Kibo Laboratory to assemble Hicari sample cartridges for upcoming operations. Hicari, an experiment led by the JAXA (Japanese Aerospace Exploration Agency), investigates high-quality crystal growth of semiconductors.

Meanwhile, Dominick worked with NASA Flight Engineer Tracy C. Dyson to charge and prep batteries and install data recorders in two spacesuits for a round of upcoming spacewalks this summer. The duo then spent the rest of the afternoon inside the station’s cupola, detailing and cleaning its seven windows.

In the Columbus Laboratory Module, NASA Flight Engineer Mike Barratt collected water samples from the water processing tank, then spent the day extracting and sequencing DNA from the samples to identify bacteria and fungi as part of the GiSMOS investigation. Characterizing microbial communities in the water system is critical to sustaining the health of crew members and vehicles on future missions aboard the orbiting complex.

Human health research continued in the Roscosmos segment as two cosmonauts—Oleg Kononenko and Nikolai Chub—spent part of their day donning a device that assesses cardiovascular function in microgravity. Chub then reconfigured some of the cameras used by crewmembers in space and practiced his piloting techniques during a Pilot-T session, while his crewmate, Alexander Grebenkin, completed some maintenance in the Nauka module.

On Earth, NASA, Boeing, and ULA (United Launch Alliance) teams continue working toward the agency’s Boeing Crew Flight Test to the International Space Station. The teams are targeting launch no earlier than 4:43 p.m. EDT Tuesday, May 21. For more information, please visit the Crew Flight Test blog.

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 updates from NASA Johnson Space Center at: https://roundupreads.jsc.nasa.gov/

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Crew Works Human Research and Payload Prep, Orbital Upkeep Continues

NASA astronaut Jeanette Epps prepares tubes to collect samples from the crew for the Immunity Assay investigation.
NASA astronaut Jeanette Epps prepares tubes to collect samples from the crew for the Immunity Assay investigation.

Orbital upkeep was at the forefront of Wednesday’s schedule aboard the International Space Station, but the Expedition 71 crew did have some time to conduct human health research and prepare scientific payloads for future operations.

NASA Flight Engineer Mike Barratt spent the morning completing tasks for the CIPHER investigation, collecting blood samples—with assistance from NASA Flight Engineer Jeanette Epps—and completing a cognition test. CIPHER, or the Complement of Integrated Protocols for Human Exploration Research, helps scientists on Earth pinpoint how the human body reacts to long-duration missions in space.

After human research activities wrapped, Barratt moved into the Destiny laboratory module to help NASA Flight Engineer Tracy C. Dyson install a vacuum jumper to the Major Constituent Analyzer, which checks the quality of the orbital complex’s air. The duo was then joined by Epps and NASA Flight Engineer Matthew Dominick for a midday conference with ground teams.

Epps also spent the day gathering kits for future Immunity Assay operations and setting up Kubik, an incubator designed to study biological samples in microgravity. In the afternoon, she worked on cargo operations, stowing items in Northrop Grumman’s Cygnus spacecraft.

Dyson and Dominick worked on additional orbital plumbing tasks throughout the day, inspecting the toilet after wrapping up maintenance and re-installing the port stalls to the bathroom. The duo also worked inside the station’s cupola, or “window to the world,” separately to clean the area and its seven windows.

Near the end of the day, Dyson removed and replaced samples from the Materials Science Lab and prepared the payload for its next sample run, while Dominick completed some on-orbit medical training.

In the Zarya module, current station Commander Oleg Kononenko ran the 3D printer, while Flight Engineer Alexander Grebenkin completed some computer maintenance. Later on, Grebenkin practiced his piloting techniques during a Pilot-T session, and his Roscosmos crewmate, Nikolai Chub, investigated the behavior of liquid phases exposed to different temperatures and vibrations in microgravity.

On Earth, NASA, Boeing, and ULA (United Launch Alliance) teams continue working remaining open tasks in preparation for the agency’s Boeing Crew Flight Test to the International Space Station. The teams now are targeting a launch date of no earlier than 4:43 p.m. EDT on Tuesday, May 21, to complete additional testing. For more information, please visit the CFT blog.

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 updates from NASA Johnson Space Center at: https://roundupreads.jsc.nasa.gov/

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Crew Works Maintenance; NASA, Boeing Target No Earlier Than May 21 for Launch

The last rays of an orbital sunset illuminate Earth's atmosphere and reveal the cloud tops in this photograph from the International Space Station as it orbited 258 miles above the Atlantic Ocean.
The last rays of an orbital sunset illuminate Earth’s atmosphere and reveal the cloud tops in this photograph from the International Space Station as it orbited 258 miles above the Atlantic Ocean.

While science often occupies the crew schedule aboard the International Space Station, upkeep of the orbiting complex is just as important to ensure the longevity of microgravity operations. On Tuesday, the Expedition 71 septet spent another full day conducting maintenance on scientific payloads and life support systems.

NASA Flight Engineer Jeanette Epps kicked off the day preparing measurement aids for crew quarter inspections that were conducted later in the day. Afterward, Epps charged spacesuit batteries in preparation for a round of spacewalks this summer, then moved into the Tranquility module to collect and analyze samples from the Water Processor Assembly, which provides clean, drinkable water for crew members after being recycled from multiple sources.

After Epps prepped the measurement aids, NASA Flight Engineer Matthew Dominick entered the crew quarters to take airflow measurements from the intake ducts. Dominick then continued orbital plumbing work he began yesterday, removing and replacing some hoses, the air filter, and wastewater filter in the station’s toilet. He completed the day by reactivating the bathroom and stowing tools used for the repairs.

Though maintenance was at the forefront of today’s microgravity work, Flight Engineer Mike Barratt did have some time to collect biological samples for ongoing human research. CIPHER, or the Complement of Integrated Protocols for Human Exploration Research, is a suite of total-body experiments that help researchers pinpoint how the human body reacts to long-duration missions in space. Through the collection of biological samples, scientists can examine changes to cartilage health, inflammation and immune function, kidney health, and more.

After his human research activities, Barratt moved into the Destiny laboratory module to service the Cold Atom Lab, which chills atoms to near absolute zero to observe the fundamental behaviors and quantum characteristics that are difficult or impossible to probe at higher temperatures. Barratt reconnected power and data cables and the filter to the quantum physics device.

Following Dominick’s intake duct measurements in the morning, NASA Flight Engineer Tracy C. Dyson spent the afternoon in the crew quarters taking additional measurements. She was also joined by cosmonaut and current space station Commander Oleg Kononenko and Flight Engineer Nikolai Chub to complete some on orbit medical training, reviewing procedures that would need to be taken in the event an emergency were to occur on station that requires the use of CPR.

In the Zarya module, Flight Engineer Alexander Grebenkin of Roscosmos assessed lighting conditions throughout the segment, then ran a distillation cycle on the wastewater processor.

On Earth, NASA, Boeing, and ULA (United Launch Alliance) teams continue working remaining open tasks in preparation for the agency’s Boeing Crew Flight Test to the International Space Station. The teams now are targeting a launch date of no earlier than 4:43 p.m. EDT on Tuesday, May 21, to complete additional testing. For more information, please visit the CFT blog.

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 updates from NASA Johnson Space Center at: https://roundupreads.jsc.nasa.gov/

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Station Maintenance and Upkeep Top Monday’s Schedule

Expedition 70 Flight Engineer and NASA astronaut Matthew Dominick smiles for a portrait during photography duties aboard the International Space Station.
Expedition 70 Flight Engineer and NASA astronaut Matthew Dominick smiles for a portrait during photography duties aboard the International Space Station.

A full day of orbital upkeep and maintenance kept the Expedition 71 crew busy on Monday as the septet continues to prepare the International Space Station for the arrival of two astronauts.

In the Tranquility module, NASA astronaut Matthew Dominick kicked off the morning by removing the top and bottom port stalls of the orbital lab’s toilet. Removing the stalls allowed him and his NASA crewmate, Tracy C. Dyson, to access the conductivity sensor and pump for repairs. The duo then worked together throughout the day to replace hardware in the station’s bathroom before reinstalling the port stalls and moving onto other work.

Once orbital plumbing duties wrapped, Dominick moved into the cupola, or “window to the world,” to inspect and photograph the conditions of the windows. Dyson assisted NASA astronaut Mike Barratt with a Dragon spacesuit check to ensure the suit and its components—such as the ear pieces, garment shirt, helmet visor, boots, and more—are still comfortable and working properly.

Barratt also conducted some maintenance on the station’s treadmill and his NASA crewmate, Jeanette Epps, performed maintenance on the Advanced Resistive Exercise Device, or ARED. Epps replaced the cable arm ropes on the device’s pulley system, then realigned the tension plates. Later on, she also completed a monthly inspection of the orbital outpost’s defibrillator.

In the Zarya module, Roscosmos Flight Engineer Alexander Grebenkin spent the entire day replacing different sections of soft air ducts. His crewmate, Nikolai Chub, did have some time to perform some science and ran an experiment that assesses the corrosion of various coatings and materials in microgravity. Station Commander Oleg Kononenko photographed Chub during the experiment, then moved on to assess the condition of surfaces throughout the Roscosmos segment.

On Earth, preparations continue for NASA’s Boeing Crew Flight Test ahead of the next launch opportunity, which is targeted for no earlier than 6:16 p.m. EDT Friday, May 17. NASA astronauts Butch Wilmore and Suni Williams returned to Houston over the weekend as work progressed on a valve replacement on the United Launch Alliance Atlas V rocket Centaur upper stage. For the latest on the mission, please visit NASA’s blog.

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 updates from NASA Johnson Space Center at: https://roundupreads.jsc.nasa.gov/

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Crew Works Payloads and Training, Awaits Starliner Arrival

Expedition 70 Flight Engineers (from left) Tracy C. Dyson and Jeanette Epps, both NASA astronauts, are pictured aboard the International Space Station's Destiny laboratory module.
Expedition 70 Flight Engineers (from left) Tracy C. Dyson and Jeanette Epps, both NASA astronauts, are pictured aboard the International Space Station’s Destiny laboratory module.

Payload maintenance and training topped Friday’s schedule aboard the International Space Station as the Expedition 71 septet gears up to welcome two new crew members next week.

On Thursday, May 2, four crew members entered the SpaceX Dragon spacecraft and relocated it to a different port to make room for the upcoming arrival of NASA’s Boeing Crew Flight Test. Dragon undocked from the Harmony module’s forward-facing port at 8:57 a.m. EDT and autonomously redocked to the module’s space-facing port at 9:46 a.m.

This move made Harmony’s forward port available for the arrival of Boeing’s Starliner spacecraft next week. Starliner is scheduled to launch from Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida at 10:34 p.m. Monday, May 6, carrying NASA astronauts Butch Wilmore and Suni Williams to the station. The duo will enter Earth’s orbit and monitor the performance of spacecraft before docking to the orbital complex around 12:46 a.m. Wednesday, May 8.

Wilmore and Williams will spend about a week in low Earth orbit with the Expedition 71 crew to test Starliner and its subsystems before NASA certifies the transportation system for rotational missions to the orbiting laboratory as part of the agency’s Commercial Crew Program. NASA will broadcast the historic flight on NASA+, NASA TV, the NASA app, YouTube, and the agency’s website beginning at 6:30 p.m. Monday.

Aboard station, the septet split up maintenance duties on Friday. Flight Engineer Tracy C. Dyson of NASA began her day inspecting and photographing spacesuit power and data cables in preparation for upcoming spacewalks in June. Dyson then spent most of the day working with the Microgravity Science Glovebox, rotating the payload to clean its fans and screen, then activating it to support upcoming science investigations.

Flight Engineer Matthew Dominick of NASA removed and replaced the hydrogen sensor in the station’s oxygen generation system. He was later joined by his NASA crewmate, Mike Barratt, to test the health of the ventilation system in the U.S. segment and measured the airflow coming in and out of the vents.

The duo then joined NASA Flight Engineer Jeanette Epps and Roscsosmos Flight Engineer Alexander Grebenkin for a round of medical emergency training. The quartet reviewed procedures and hardware in the event a medical emergency requiring CPR were to occur on station.

After training, Epps removed and replaced the air filter in the wastewater processing system, then charged the Simplified Aid for EVA Rescue, or SAFER, batteries. Attached to the spacesuits astronauts don during spacewalks, SAFER allows a crew member to safely return to the station if they were to become untethered.

In the Zarya module, station Commander Oleg Kononenko removed and replaced ceiling panels. His Roscosmos crewmate, Nikolai Chub, practiced his piloting techniques during a Pilot-T session and later investigated the behavior of various liquid phases exposed to different temperatures and vibrations in the microgravity environment.

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 updates from NASA Johnson Space Center at: https://roundupreads.jsc.nasa.gov/

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Crew Readies for Dragon Relocation, Works Robotics and Connects with Students on Earth

The SpaceX Crew-8 members are pictured inside the SpaceX Dragon spacecraft shortly after the hatch opened to the station. From left are, Alexander Grebenkin, Mike Barratt, Jeanette Epps, and Matthew Dominick.
The SpaceX Crew-8 members are pictured inside the SpaceX Dragon spacecraft shortly after the hatch opened to the station on March 5, 2024. From left are, Alexander Grebenkin, Mike Barratt, Jeanette Epps, and Matthew Dominick.

Mission preparations are underway aboard the International Space Station as a spacecraft relocation on Thursday will make room for a crew arrival next week. The Expedition 71 crew spent Wednesday reviewing mission procedures, conducting robotics activities, and connecting with students on Earth.

Four crew members will suit up Thursday, May 2 and enter the SpaceX Dragon spacecraft to relocate it to a new port as the countdown to NASA’s Boeing Crew Flight Test continues. NASA astronauts Mike Barratt, Matthew Dominick, and Jeanette Epps, as well as cosmonaut Alexander Grebenkin of Roscosmos, will undock from the forward port of the Harmony module at 7:45 a.m. EDT and take a short ride aboard Dragon before redocking to the zenith port of Harmony around 8:28 a.m.

The quartet spent Wednesday morning reviewing procedures for Dragon’s relocation and was later joined by NASA astronaut Tracy C. Dyson—who will be monitoring the maneuver—to hold a conference with ground teams. In preparation for the move, Epps also cleaned and inspected the health of Dragon’s capture and docking system, then later reorganized supplies within the spacecraft.

After tomorrow’s relocation, Harmony’s forward port will be available, making room for the arrival of Boeing’s Starliner spacecraft next week. Starliner, scheduled to launch at 10:34 p.m. Monday, May 6, will carry NASA astronauts Butch Wilmore and Suni Williams to the orbiting laboratory, with docking scheduled for around 12:46 a.m. Wednesday, May 8. The duo will spend about a week aboard station to test the Starliner spacecraft and its subsystems before NASA certifies the transportation system for rotational missions to the orbital complex as part of the agency’s Commercial Crew Program.

As the crew arrival nears, Dyson, Dominick, and Barratt held a conference with ground teams in the afternoon to go over Starliner procedures, including rendezvous, docking, and departure.

The orbital septet also scheduled in some time for robotics, space-to-ground operations, and maintenance on Wednesday. Dyson powered on Astrobee, the station’s free-flying robots, and performed a Zero Robotics tech demonstration, which allows students on Earth to write software to control the robots.

Dominick connected with students in North Carolina through an ISS Ham Radio session, answering questions about living and working in space. Meanwhile, Epps recalibrated ethernet cable connections in the crew quarters and Barratt conducted some routine orbital plumbing.

In the Roscosmos segment, station Commander Oleg Kononenko ran an experiment that studies the glow of Earth’s nighttime atmosphere in near-ultraviolet, while Flight Engineer Nikolai Chub investigated the behavior of various liquid phases exposed to different temperatures and vibrations in the microgravity environment.

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 updates from NASA Johnson Space Center at: https://roundupreads.jsc.nasa.gov/

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On-Orbit Training and Health Research Occupy Schedule on Tuesday

Expedition 71 Flight Engineer and NASA astronaut Mike Barratt tests portable breathing gear aboard the International Space Station's Destiny laboratory module.
Expedition 71 Flight Engineer and NASA astronaut Mike Barratt tests portable breathing gear aboard the International Space Station’s Destiny laboratory module.

A suite of on-orbit training topped Tuesday’s schedule aboard the International Space Station as the Expedition 71 crew gets ready for a spacecraft relocation on Thursday and a crew arrival next week. Four crew members also spent some time conducting ongoing health research to help scientists on Earth better understand the effects of spaceflight on the human body.

In the morning, NASA Flight Engineers Mike Barratt and Jeanette Epps assisted one another with ultrasound scans of veins in their necks, shoulders, clavicles, and back of the knees. The duo was then joined by their other Crew-8 crewmates, Flight Engineers Matthew Dominick of NASA and Alexander Grebenkin of Roscosmos, to review procedures and complete training for the upcoming relocation of their SpaceX Dragon spacecraft.

The quartet will suit up Thursday, May 2 and enter Dragon for an undocking from the forward port of the Harmony module at 7:45 a.m. EDT. They will then take a short ride aboard Dragon before redocking to the zenith port of Harmony around 8:28 a.m.

This relocation will make room for the Starliner spacecraft as part of NASA’s Boeing Crew Flight Test, scheduled to launch Monday, May 6 at 10:34 p.m. Starliner will carry NASA astronauts Butch Wilmore and Suni Williams to the station for a docking around 12:48 a.m. Wednesday, May 8. The duo will join the Expedition 71 crew in low Earth orbit for about a week before returning home.

After lunch, the Crew-8 cadre was joined by astronaut Tracy C. Dyson of NASA, space station Commander Oleg Kononenko, and Flight Engineer Nikolai Chub of Roscosmos to complete a fire training session in the event an emergency were to occur aboard station. The septet then spent some time discussing the training and holding a conference with ground teams.

In the evening, Dominick set up tomography hardware and assisted Dyson with an eye exam. Dyson then shut down and stowed the hardware, wrapping up a round of health exams for the week.

On Earth, a SpaceX Dragon cargo spacecraft, which spent about a month docked to the orbiting laboratory, splashed down off the coast of Florida at 1:38 a.m. Tuesday, April 30, returning more than 4,100 pounds of supplies and scientific experiments back to researchers.

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 updates from NASA Johnson Space Center at: https://roundupreads.jsc.nasa.gov/

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Crew Starts Week With Maintenance, Science Prep, and Health Exams

Expedition 71 Flight Engineer and NASA astronaut MIke Barratt is pictured relaxing aboard the International Space Station'.
Expedition 71 Flight Engineer and NASA astronaut Mike Barratt is pictured relaxing aboard the International Space Station.

Five spacecraft are parked at the International Space Station following yesterday’s undocking of a cargo craft. Aboard the orbiting complex, the Expedition 71 crew is looking ahead to a Dragon relocation mid-week and the arrival of two new crew members next week. On Monday, the septet spent the day conducting routine maintenance, prepping for upcoming science activities, and performing health exams.

A Dragon cargo spacecraft is currently orbiting Earth preparing to splash down off the coast of Florida at approximately 1:38 a.m. EDT Tuesday, April 30. Dragon, which spent about a month docked to the station, departed at 1:10 p.m. Sunday, April 28, and is carrying more than 4,100 pounds of supplies and scientific experiments back to researchers on Earth.

Aboard station, four orbital residents—NASA astronauts Jeanette Epps, Matthew Dominick, Mike Barratt, and Roscosmos cosmonaut Alexander Grebenkin—are preparing to relocate their SpaceX Dragon spacecraft on Thursday, May 2 to the zenith port of the Harmony module. This relocation will make room for the Starliner spacecraft as part of NASA’s Boeing Crew Flight Test, scheduled to launch Monday, May 6. Starliner will carry NASA astronauts Butch Wilmore and Suni Williams to the station for about a one week stay.

While mission preparations are underway, Dominick set up hardware to perform an eye exam on Epps and measure her blood pressure using a new thigh cuff. The hardware examines whether cuffs on the legs change the way fluid moves around the body. The microgravity environment often causes fluids to shift toward the head, which can result in changes to vision and eye structure. Scientists are exploring whether the new hardware could be useful for astronauts to wear in the future as a normal part of spaceflight.

In the Destiny laboratory module, Barratt swapped out cartridges inside the Materials Science Laboratory and prepared it for an upcoming sample run. The facility is used to investigate the behavior of different types of materials at high temperatures in microgravity. Meanwhile, NASA Flight Engineer Tracy C. Dyson changed out two water resupply tanks in the water storage system, then moved on to perform routine maintenance on the station’s Advanced Resistive Exercise Device, or ARED.

Over in the Roscosmos segment, Grebenkin practiced his piloting techniques during a Pilot-T session. His crewmates, Commander Oleg Kononenko and Flight Engineer Nikolai Chub, stowed tools they used during a four-hour and 36-minute spacewalk on Thursday, April 25.

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 updates from NASA Johnson Space Center at: https://roundupreads.jsc.nasa.gov/

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Eye, Brain Research and Cardiac Cell Printing Wrap Up Station Week

NASA astronaut Tracy C. Dyson works in the BioFabrication Facility's portable glovebag located in the International Space Station's Columbus laboratory module.
NASA astronaut Tracy C. Dyson works in the BioFabrication Facility’s portable glovebag located in the International Space Station’s Columbus laboratory module.

Advanced space biology continued on Friday aboard the International Space Station to develop and test therapies for a range of space-caused and Earthbound health conditions. The Expedition 71 crew members also fit in light maintenance duties and their daily exercise sessions during their busy research schedule.

Eye health has been a main research focus this week as the crew conducted standard eye exams and investigated spaceflight-induced vision issues. Mice on the station are being treated with a gene therapy that may prevent retinal conditions and reduced vision associated with living in space. The mice will be returned aboard the SpaceX Dragon cargo spacecraft for analysis on Earth.

NASA Flight Engineers Matthew Dominick and Jeanette Epps split their shift on Friday and took turns feeding the mice and cleaning the rodent habitats located in the Destiny laboratory module. During the rest of their day, the two astronauts serviced a variety of life support and science hardware and worked out on a treadmill, exercise cycle, and the advanced resistive device.

NASA astronaut Mike Barratt spent most of his day in the Kibo laboratory module servicing brain organoid samples and injecting a test drug into the specimens. Working in Kibo’s Life Science Glovebox, Barratt spent his shift treating the samples and placing them in the Space Automated Bioproduct Laboratory, a research incubator, for later analysis. Results from the study may lead to insights into microgravity’s effect on the central nervous system and potential treatments for neurological diseases on Earth.

3D bioprinting continued onboard the orbital outpost on Friday as NASA Flight Engineer Tracy C. Dyson worked in the Columbus laboratory module operating the BioFabrication Facility. She swapped sample cassettes in and out of the device then stowed printed cardiac cell samples inside the Advanced Space Experiment Processor for a two-month incubation period. The samples will be returned to Earth for future analysis. The biotechnology study may enable future space crews to print on-demand meals and medicines and doctors on Earth to engineer replacement organs and tissues for patients.

The space station’s three cosmonauts had an off-duty day and observed Cosmonautics Day which celebrates cosmonaut Yuri Gagarin’s first spaceflight on April 12, 1961. Station Commander Oleg Kononenko and Flight Engineers Nikolai Chub and Alexander Grebenkin downlinked a video message commemorating Gagarin’s first mission. The trio from Roscosmos then deactivated and disconnected sensors that were monitoring and recording their body functions.

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.

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Soyuz Hatches Open, Expedition 70 Welcomes Crew Aboard Station

The Soyuz MS-25 crew joins the Expedition 70 crew aboard the International Space Station. Credit: NASA TV
The Soyuz MS-25 crew joins the Expedition 70 crew aboard the International Space Station. Credit: NASA TV

The hatches between the International Space Station and the newly arrived Soyuz MS-25 spacecraft officially opened at 1:26 p.m. EDT. The arrival of three new crew members to the existing seven people already aboard for Expedition 70 temporarily increases the station’s population to 10.

NASA astronaut Tracy C. Dyson, Roscosmos cosmonaut Oleg Novitskiy, and spaceflight participant Marina Vasilevskaya of Belarus joined NASA astronauts Loral O’Hara, Matthew Dominick, Mike Barratt, and Jeanette Epps, as well as Roscosmos cosmonauts Oleg Kononenko, Nikolai Chub, and Alexander Grebenkin, already living and working aboard the space station.

Dyson will spend six months aboard the station as an Expedition 70 and 71 flight engineer, returning to Earth in September with Oleg Kononenko and Nikolai Chub of Roscosmos, who will complete a year-long mission on the laboratory.

Novitskiy and Vasilevskaya will be aboard the station for 12 days, providing the ride home for O’Hara on Saturday, April 6, aboard Soyuz MS-24 for a parachute-assisted landing on steppe of Kazakhstan. O’Hara will have spent 204 days in space when she returns.

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 updates from NASA Johnson Space Center at: https://roundupreads.jsc.nasa.gov/

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