Crew Packs Dragon, Works Neuroscience, and Preps for Spacewalk

NASA astronauts Matthew Dominick and Tracy C. Dyson both pose for a fun portrait as Dominick tests portable breathing gear.
NASA astronauts Matthew Dominick and Tracy C. Dyson both pose for a fun portrait as Dominick tests portable breathing gear.

Payload operations are underway aboard the International Space Station as a U.S. cargo craft prepares for its return to Earth at the end of the week. Meanwhile, the Expedition 71 crew continued researching neuroscience and getting ready for the year’s first spacewalk.

The four NASA astronauts in the orbital outpost’s U.S. segment spent the first half of their day packing the SpaceX Dragon spacecraft with science cargo for analysis back on Earth. Flight Engineers Tracy C. Dyson and Matthew Dominick started the day removing research samples from station science freezers and carefully placing them inside Dragon science freezers. Afterward, Flight Engineers Mike Barratt and Jeanette Epps ensured cargo already packed inside Dragon was properly strapped and secured for the flight back to Earth. Dragon is due to undock from the Harmony module’s space-facing port on April 26, weather dependent, and splash down off the coast of Florida the following day.

Afterward, Barratt worked in the Destiny laboratory module and set up a fluorescence microscope then joined Epps and Dominick swapping brain organoid samples inside the optical device. Scientists on the ground remotely operated the specialized microscope viewing the samples to observe the effects of a drug therapy on the brain organoid cultures. Researchers will use the results to study ways protect an astronaut’s central nervous system in microgravity as well as prevent and treat neurological conditions on Earth.

Dyson serviced components and cleaned hardware inside the BioFabrication Facility located in the Columbus laboratory module. The 3D biological printer is being tested for its ability to print organ-like tissues in microgravity potentially enabling space crews to print meals or medicines and allowing doctors to manufacture organs for patients on Earth. Dyson then had her eyes checked as Dominick operated medical imaging gear to view her cornea, retina, and optic nerve.

The next spacewalk at the space station is scheduled for Thursday, April 25. Cosmonauts Oleg Kononenko and Nikolai Chub will exit the Poisk airlock and spend about seven hours configuring hardware and installing experiments on the Roscosmos segment of the space station. The duo spent most of Tuesday reviewing their spacewalk procedures and collecting tools planned for the excursion. The two cosmonauts began the day attaching sensors to themselves measuring their heart activity for a long-running Roscosmos cardiac study.

Flight Engineer Alexander Grebenkin joined his cosmonaut crewmates for the spacewalk procedure reviews on Thursday. He will help the duo in and out of their Orlan spacesuits and monitor the spacewalkers while they work outside the space station.

At the end of the day, Grebenkin joined Dominick, Barratt, and Epps, his SpaceX Dragon Endeavour crewmates, and checked out their Dragon pressure suits and communication systems. The quartet earlier tested a garment that may help crews adjust quicker to the effects of gravity after returning to Earth.


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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NASA’s Boeing Crew Flight Test Astronauts Enter Quarantine for Mission

NASA's Boeing Crew Flight Test astronauts Suni Williams (left) and Butch Wilmore (right) pose for photo ahead of May 6 flight to the International Space Station
The official crew portrait for NASA’s Boeing Crew Flight Test. Left is Suni Williams, who will serve as the pilot, and to the right is Barry “Butch” Wilmore, spacecraft commander. Photo credit: NASA

NASA astronauts Butch Wilmore and Suni Williams, who are set to launch to the International Space Station on Monday, May 6, entered pre-flight quarantine in preparation for the agency’s Boeing Crew Flight Test mission.

Flight crew health stabilization is a standard process ahead of any human spaceflight mission to ensure the health and safety of the crew prior to liftoff, as well as prevent sickness of the astronauts at the space station. During quarantine, astronaut contact is limited, and most interactions are remote – although family and some launch team members also may be in quarantine or cleared before interacting with the crew.

Wilmore and Williams will launch aboard Boeing’s Starliner spacecraft on a ULA (United Launch Alliance) Atlas V rocket from Space Launch Complex-41 at Cape Canaveral Space Force Station in Florida as part of NASA’s Commercial Crew Program. The duo will make history as the first people to fly on the Starliner spacecraft.

Wilmore and Williams will quarantine at NASA’s Johnson Space Center in Houston before traveling to the agency’s Kennedy Space Center in Florida no earlier than Thursday, April 25, where they’ll remain in quarantine until launch.

Meanwhile, teams also are preparing for the Flight Test Readiness Review, which will take place over the course of two days – Wednesday, April 24, and April 25. That review brings together teams from NASA, Boeing, ULA, and its international partners to verify mission readiness including all systems, facilities, and teams that will support the end-to-end test of the Starliner.

Following a successful flight test, NASA will begin certifying the Starliner system for regular crew rotation missions to space station for the agency.

Launch is scheduled no earlier than 10:34 p.m. EDT May 6.

Learn more about NASA’s Boeing Crew Flight Test by following the mission blog, the commercial crew blog, @commercial_crew on X, and commercial crew on Facebook.

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.

Neurology Study and Spacewalk Preps Kickoff Week

Astronaut Mike Barratt processes brain organoid samples inside the BioServe Tissue Chamber to learn how microgravity affects the central nervous system.
Astronaut Mike Barratt processes brain organoid samples inside the BioServe Tissue Chamber to learn how microgravity affects the central nervous system.

The Expedition 71 crew kicked off a busy schedule on Monday exploring ways to treat neurological diseases while gearing up for a spacewalk planned for Thursday. Cargo operations are also picking up as a U.S. cargo craft gets ready for its departure from the International Space Station.

Researchers use the orbital outpost’s weightless environment to gain insights impossible to achieve on Earth’s surface. Results extrapolated from the space investigations can be applied not only to promoting living in space for crews but also improving health and industry on Earth for humans.

On Monday, NASA Flight Engineers Tracy C. Dyson and Mike Barratt took turns processing brain organoid samples for a neurodegenerative disorder study. Dyson first serviced the specimens and injected a drug treatment into the sample cultures for a microscopic analysis of the therapy’s ability to counteract the effects of microgravity. Barratt processed the samples at the end of the day preparing them for stowage and later analysis. Doctors will use the results to learn how protect a crew member’s central nervous system and provide treatments for neurodegenerative conditions on Earth.

The duo then joined fellow NASA astronauts Matthew Dominick and Jeanette Epps and helped pack the SpaceX Dragon spacecraft with cargo ahead of its targeted undocking on Friday, April 26. Soon the crewmates will begin concentrating on stowing completed science experiments, including the brain organoid study, and their critical research samples inside Dragon for the ride back to Earth and analysis in laboratories.

Station Commander Oleg Kononenko and Flight Engineer Nikolai Chub are getting ready for the year’s first spacewalk at the orbital lab set to begin at 10:55 a.m. EDT on Thursday. The duo tried on their Orlan spacesuits today checking for pressure leaks and testing their communications and medical systems. The cosmonauts will spend about seven hours in the vacuum of space configuring hardware and installing experiments on the Roscosmos segment of the space station.

Cosmonaut Alexander Grebenkin assisted his cosmonaut crewmates helping the duo in and out of their Orlan spacesuits and checking the suits’ components and batteries. Grebenkin then spent the rest of Monday servicing Roscosmos life support hardware and ventilation systems.


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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Biomedical Research, Spacewalk Preps Wrap Week on Station

Cosmonaut Oleg Kononenko inspects the Soyuz MS-09 spacecraft during a spacewalk on Dec. 11, 2018.
Cosmonaut Oleg Kononenko inspects the Soyuz MS-09 spacecraft during a spacewalk on Dec. 11, 2018.

Biomedical duties to understand how space affects the human body and develop ways to treat microgravity-induced conditions were the prime research objectives for the Expedition 71 crew on Friday. The orbital residents also continued loading a U.S. cargo craft for its upcoming departure and preparing for a spacewalk at the International Space Station.

Living long-term in the weightlessness environment creates fluid shifts and blood pressure issues that doctors seek to address and promote crew health. The astronauts use a variety of biomedical tools collect their health data and monitoring how their body adapts to microgravity.

One of the most visible symptoms of living in space is a condition called “puffy face.” This is a result of body fluids moving toward a crew member’s head due to microgravity. Astronauts have reported this condition may also cause internal head and eye pressure affecting vision. A new thigh cuff, similar to a blood pressure cuff, is being tested for its ability to prevent space-caused fluid shifts toward an astronaut’s head. NASA Flight Engineers Matthew Dominick and Jeanette Epps partnered together for that investigation performing chest scans with the Ultrasound 2 device, measuring blood pressure, and conducting eye exams. Doctors are exploring if the thigh cuff can be worn in space to counteract the headward fluid shifts for healthier crews.

NASA Flight Engineer Tracy C. Dyson attached electrodes to herself, wore a sensor-packed cap, and operated a portable ultrasound device on Friday. She was measuring her brain blood flow and blood pressure simultaneously. Scientists are studying how the brain regulates blood flow in weightlessness potentially revealing new therapies for spaceflight-induced and Earthbound blood pressure conditions.

NASA astronaut Mike Barratt spent all day Friday tending to mice living in rodent habitats located in the Destiny laboratory module. He refilled food and water and cleaned the habitats where the mice are being treated with a gene therapy that may improve eye health in space.

All four NASA astronauts will go into the weekend readying the SpaceX Dragon cargo spacecraft for its undocking scheduled for April 26. The quartet has been taking turns all week transferring cargo in and out of Dragon. Next week, the NASA foursome will be making room inside the spacecraft and packing finalized experiments that will be returned to Earth for analysis.

Spacewalk preparations were underway once again in the Roscosmos segment of the orbital laboratory. Cosmonauts Oleg Kononenko and Nikolai Chub checked their Orlan spacesuits for leaks, tested their suits’ communications and medical components, and reviewed procedures to ready the Poisk airlock for their April 25 spacewalk. The duo will exit the station for seven hours of hardware installation work on the Poisk module.

Flight Engineer Alexander Grebenkin joined his Roscosmos crewmates on Friday afternoon for the Poisk airlock procedure reviews. He started his day pedaling on a treadmill for a periodic fitness evaluation. Grebenkin completed his shift after practicing futuristic spacecraft and robotic piloting techniques that may be used on planetary missions.


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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Advanced Research and Ongoing Spacewalk Preps Pack Schedule

Cosmonaut Oleg Kononenko is pictured during a spacewalk on Dec. 11, 2018, to inspect the Soyuz MS-09 crew ship.
Cosmonaut Oleg Kononenko is pictured during a spacewalk on Dec. 11, 2018, to inspect the Soyuz MS-09 crew ship. Credit: NASA TV

The Expedition 71 crew had its hands full on Thursday with a multitude of research activities filling the schedule. The orbital septet also continued gearing up for next week’s spacewalk amidst ongoing cargo operations aboard the International Space Station.

Advanced space science is continually taking place aboard the orbital outpost with the experiments being run by astronauts, remotely controlled by researchers on the ground, or autonomously operated. The equipment housing and powering the research also requires constant monitoring and maintenance ensuring high quality results that provide valuable insights into microgravity phenomena.

NASA astronauts Jeanette Epps and Tracy C. Dyson split their schedule on Thursday servicing hardware supporting a pair of different investigations. Epps began her day in the Kibo laboratory module cleaning components and swapping samples inside the Electrostatic Levitation Furnace. The high temperature research device explores the thermophysical properties of materials difficult to observe in Earth’s gravity environment. Next, Dyson set up biomedical hardware she will use on Friday to measure how the brain regulates blood flow in the absence of gravity. Results may lead to new therapies and countermeasures for spaceflight-induced and Earthbound blood pressure conditions.

NASA Flight Engineers Mike Barratt and Matthew Dominick spent their morning supporting two space biology investigations looking at separate but critical phenomena. Barratt attached electrodes to his chest and used an ultrasound device to scan his vascular system with remote guidance from doctors on Earth. The medical data is being used to assess the cardiovascular risk of living in space and is one part of the CIPHER human research study. Dominick swabbed surfaces throughout the station’s U.S. segment collecting microbe samples for analysis. The specimens will be treated on the orbital lab and examined on Earth to determine microbial resistance to antibiotics and the risk to crew health.

Dominick then partnered up with Barratt mid-afternoon testing portable breathing gear. At the end of the day, Dominick joined Dyson and swapped cargo in and out of the SpaceX Dragon spacecraft. Dragon is due to complete its cargo mission and depart the station on April 26. Dyson earlier collected microbe samples for incubation and analysis. Epps wrapped up her shift installing a computer with a camera pointed out a window in the Destiny laboratory module for Earth observations.

Spacewalk preparations have been well underway this week as cosmonauts Oleg Kononenko and Nikolai Chub get ready for a seven-hour excursion to swap hardware outside the space station on April 25. The Roscosmos duo began the day pedaling on an exercise cycle for a pre-spacewalk fitness evaluation. Afterward, the crewmates checked their Orlan spacesuit systems and components inside the Poisk airlock.

Roscosmos Flight Engineer Alexander Grebenkin remained focused on life support maintenance and orbital plumbing tasks in the cosmonaut’s portion of orbital outpost. Later in the afternoon, he participated in the spacewalk preparations staging standard medical equipment and tools in Poisk.


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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Crew Works Cargo, Biomedical Ops, and Spacewalk Preps

Astronaut MIke Barratt installs a small satellite orbital deployer inside the Kibo laboratory module's airlock.
Astronaut MIke Barratt installs a small satellite orbital deployer inside the Kibo laboratory module’s airlock.

Cargo operations and spacewalks preparations topped the schedule aboard the International Space Station on Wednesday. The Expedition 71 crew members also worked on biomedical research and reviewed procedures for a simulated emergency.

NASA astronauts Tracy C. Dyson and Mike Barratt kicked off their day swapping cargo in and out of the SpaceX Dragon cargo spacecraft that arrived at the orbital outpost on March 23. Afterward, NASA Flight Engineers Matthew Dominick and Jeanette Epps took over the cargo transfers and wrapped up the work before lunchtime. Dragon is due to undock from the Harmony module’s space-facing port and return to Earth at the end of the month.

The quartet regrouped in the afternoon and participated in a pair of space biology activities to help doctors understand how the human body adapts to weightlessness. First, Barratt operated the Ultrasound 2 device and scanned Dyson’s neck, shoulder, and leg veins as part of regularly scheduled medical checkups. Barratt then joined Dominick and Epps to try on and test a garment that may help crews adjust quicker to the return to Earth’s gravity after a long-term space mission. The threesome then measured the circumference of the waist and right leg during the garment fit check.

Cosmonauts Oleg Kononenko and Nikolai Chub continue preparing for this year’s first spacewalk. The duo from Roscosmos were once again collecting tools, configuring spacesuits, and readying the Poisk airlock for their planned seven-hour spacewalk scheduled for April 25. The pair also took turns during the morning wearing a cap packed with sensors while practicing on a computer futuristic spacecraft and robotic piloting techniques that may be used on planetary missions. Flight Engineer Alexander Grebenkin worked throughout the day servicing a variety of life support hardware and video gear in the space station’s Roscosmos segment.

At the end of the day, all seven orbital residents gathered together and watched a video describing the operation of emergency simulation software. Next, the crewmates familiarized themselves with emergency hardware, such as breathing masks, and procedures, including closing hatches and evacuation paths.


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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Space Science and Spacewalk Preps Keep Crew Busy

Astronaut Jeanette Epps smiles for a portrait after she finished conducting a HAM radio session with Italian students.
Astronaut Jeanette Epps smiles for a portrait after she finished conducting a HAM radio session with Italian students.

The Expedition 71 crew members continued ongoing biology and physics research, as well as spacewalk preparations on Tuesday. The seven International Space Station residents also kept up more CubeSat work, cargo operations, and lab maintenance throughout their shifts.

Eye checks were on the schedule Tuesday as NASA Flight Engineers Tracy C. Dyson and Mike Barratt contributed to the CIPHER human research study. The duo participated in a pair of eye exams looking at the retina and optic nerve for one portion of the investigation that examines ocular structure and function in microgravity. Results may inform countermeasures that protect an astronaut’s vision on long-term space missions farther away from Earth.

Dyson earlier replaced cardiac cell samples inside the Advanced Space Experiment Processor, a research incubator, that were printed using the BioFabrication Facility. Barratt installed a small satellite orbital deployer into the Kibo laboratory module’s airlock. The Japanese robotic arm will grapple the deployer and point it away from the station where it will release a series of CubeSats into Earth orbit for scientific and technology research.

NASA Flight Engineers Jeanette Epps and Matthew Dominick joined each other during the afternoon finalizing hardware swaps inside the Cold Atom Lab. During the installation work the duo also cleaned filters and checked power readings on the research device that observes the quantum behavior of atoms chilled to near absolute zero.

Dominick began his day processing blood samples with Dyson spinning them in a centrifuge for later analysis. The duo later took turns transferring cargo in and out of the SpaceX Dragon spacecraft.

Cosmonauts Oleg Kononenko and Nikolai Chub continue preparing for an April 25 spacewalk that will see the Roscosmos duo work outside in the vacuum of space for about seven hours. The two crewmates spent the afternoon gathering spacewalking tools and preparing their Orlan spacesuit components for upcoming operations. During the morning, the pair took turns studying spacecraft and robotic piloting techniques that may be used on future planetary missions.

Roscosmos Flight Engineer Alexander Grebenkin spent the majority of his day servicing life support components inside the Zvezda service module. At the end of the day, Grebenkin moved to the Tranquility module and worked out on the advanced resistive exercise device for an exercise evaluation.


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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NASA’s Boeing Crew Flight Test Begins Stacking Operations

Photo of Boeing's Starliner that will take NASA astronauts to the International Space Station In May 2024.
Boeing’s Starliner spacecraft, set to carry NASA astronauts Butch Wilmore and Suni Williams on the agency’s Boeing Crew Flight Test to the International Space Station, passes in front of the iconic Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on Tuesday, April 16, 2024. Photo credit: NASA/Kim Shiflett
Boeing’s Starliner spacecraft, set to carry NASA astronauts Butch Wilmore and Suni Williams on the agency’s Boeing Crew Flight Test to the International Space Station, is lifted and stacked on a United Launch Alliance Atlas V rocket
https://blogs.nasa.gov/boeing-crew-flight-test/

NASA teams joined Boeing on April 16 to move the Starliner spacecraft out of the company’s Commercial Crew and Cargo Processing Facility at the agency’s Kennedy Space Center in Florida to the launch site.

Technicians lifted and connected the spacecraft to the top of a United Launch Alliance Atlas V rocket at the Vertical Integration Facility at Cape Canaveral Space Force Station ahead of NASA’s Boeing Crew Flight Test mission.

NASA astronauts Butch Wilmore and Suni Williams are the first to launch aboard Boeing’s Starliner spacecraft to the International Space Station. Liftoff is scheduled for no earlier than 10:34 p.m. EDT Monday, May 6, from Cape Canaveral’s Space Launch Complex-41. The astronauts will spend about a week at the orbiting laboratory before the crew capsule makes a parachute and airbag-assisted landing in the southwestern United States.

After successful completion of the mission, NASA will begin the final process of certifying Starliner and its systems for crewed rotation missions to the space station.

Wilmore and Williams will wrap up flight preparations in Houston and arrive at NASA Kennedy no earlier than Thursday, April 25.

Learn more about the NASA’s Boeing Crew Flight Test by following the mission  blog, the commercial crew blog, @commercial_crew on X, and commercial crew on Facebook.

NASA Completes Analysis of Recovered Space Object

In March 2021, NASA ground controllers used the International Space Station’s robotic arm to release a cargo pallet containing aging nickel hydride batteries from the space station following the delivery and installation of new lithium-ion batteries as part of power upgrades on the orbital outpost. The total mass of the hardware released from space station was about 5,800 pounds.

The hardware was expected to fully burn up during entry through Earth’s atmosphere on March 8, 2024. However, a piece of hardware survived re-entry and impacted a home in Naples, Florida. NASA collected the item in cooperation with the homeowner and analyzed the object at the agency’s Kennedy Space Center in Florida.

Recovered stanchion from the NASA flight support equipment used to mount International Space Station batteries on a cargo pallet. The stanchion survived re-entry through Earth’s atmosphere on March 8, 2024, and impacted a home in Naples, Florida
Recovered stanchion from the NASA flight support equipment used to mount International Space Station batteries on a cargo pallet. The stanchion survived re-entry through Earth’s atmosphere on March 8, 2024, and impacted a home in Naples, Florida

As part of the analysis, NASA completed an assessment of the object’s dimensions and features compared to the released hardware and performed a materials analysis. Based on the examination, the agency determined the debris to be a stanchion from the NASA flight support equipment used to mount the batteries on the cargo pallet. The object is made of the metal alloy Inconel, weighs 1.6 pounds, is 4 inches in height and 1.6 inches in diameter.

The International Space Station will perform a detailed investigation of the jettison and re-entry analysis to determine the cause of the debris survival and to update modeling and analysis, as needed. NASA specialists use engineering models to estimate how objects heat up and break apart during atmospheric re-entry. These models require detailed input parameters and are regularly updated when debris is found to have survived atmospheric re-entry to the ground.

NASA remains committed to responsibly operating in low Earth orbit, and mitigating as much risk as possible to protect people on Earth when space hardware must be released.


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Crew Begins Week with Spacesuits, Space Physics, and Human Research

The official Expedition 71 crew portrait with (bottom row from left) Roscosmos cosmonaut Alexander Grebenkin and NASA astronauts Mike Barratt, Matthew Dominick, and Jeanette Epps. In the back row (from left) are, NASA astronaut Tracy C. Dyson and Roscosmos cosmonauts Nikolai Chub and Oleg Kononenko.
The official Expedition 71 crew portrait with (bottom row from left) Roscosmos cosmonaut Alexander Grebenkin and NASA astronauts Mike Barratt, Matthew Dominick, and Jeanette Epps. In the back row (from left) are, NASA astronaut Tracy C. Dyson and Roscosmos cosmonauts Nikolai Chub and Oleg Kononenko.

Spacesuits and space physics kicked off the work week for the Expedition 71 crew. The International Space Station residents also continued their ongoing human research activities and cargo operations.

NASA astronauts Mike Barratt and Matthew Dominick took turns on Monday servicing a pair of U.S. spacesuits. Barratt spent the morning inside the Quest airlock dumping and filling the suits’ water tanks then filtering their cooling loops. In the afternoon, Dominick wrapped up the maintenance work and deconfigured and powered down the spacesuits.

Barratt earlier joined NASA Flight Engineer Tracy C. Dyson in the Columbus laboratory module as she checked his eye function. After Barratt’s spacesuit work, NASA Flight Engineer Jeanette Epps checked his blood pressure and scanned his veins with the Ultrasound 2 device. The biomedical work is part of the CIPHER investigation to gain a broad view of the physiological and psychological changes astronauts experience during long-term space missions.

Dyson moved on and removed a small satellite orbital deployer from the Kibo laboratory module’s airlock after it deployed three CubeSats into Earth for communications and technology studies. At the end of her shift, Dyson tested her vision by reading characters off a standard eye chart.

Epps and Barratt also alternated their schedules continuing to swap cargo in and out of the SpaceX Dragon cargo spacecraft. Epps then began replacing hardware inside the Cold Atom Lab, a quantum research device for observing the behavior of atoms chilled to lower than the average temperature of the universe.

Cosmonauts Oleg Kononenko and Nikolai Chub are gearing up for the next spacewalk set for 10:55 a.m. EDT on April 25. The duo spent Monday reviewing their spacewalk tasks, measuring their arm strength, and replacing components on their Orlan spacesuits. Kononenko and Chub are expected to spend about seven hours in the vacuum of space removing and installing hardware on the orbital outpost’s Roscosmos segment.

Roscosmos cosmonaut Alexander Grebenkin worked throughout the day primarily on life support maintenance tasks. The first-time space flyer also photographed electrical components inside the Zarya module then updated the station’s inventory management system.