Diamond Member SpaceMan 0 Posted May 15, 2025 Diamond Member Share Posted May 15, 2025 4 Min Read Spacewalk Research and Technology This is the hidden content, please Sign In or Sign Up /applications/core/interface/js/spacer.png"> NASA astronaut Anne McClain prepares spacesuits ahead of the May 2025 spacewalk. Credits: NASA Science in Space: May Crew members on the International Space Station periodically conduct spacewalks to perform a variety of tasks such as installing, upgrading, and repairing equipment. During a spacewalk on May 1, astronauts installed hardware to support the planned addition of a seventh roll-out solar array on the exterior of the space station. Each of these arrays produces more than 20 kilowatts of electricity and together they will increased power production by up to 30%, enabling more scientific operations on the orbiting lab. This is the hidden content, please Sign In or Sign Up NASA astronaut Butch Wilmore collects samples from the exterior of the space station for ISS External Microorganisms.NASA Some spacewalks include operations for scientific research. On January 20, 2025, crew members collected samples for This is the hidden content, please Sign In or Sign Up , an investigation examining whether microorganisms have exited through station vents and can survive in space. Results could help determine changes needed in design of spacecraft (including spacesuits) to prevent human-associated microbes from contaminating Mars and other exploration destinations. Radiation monitoring This is the hidden content, please Sign In or Sign Up CSA astronaut Dave Williams on a spacewalk in 2007. CSA studied the radiation dose crew members experience while outside the station.NASA The CSA (********* Space Agency) investigation This is the hidden content, please Sign In or Sign Up , used a miniature, power-efficient wireless radiation measurement system or dosimeter worn by crew members during spacewalks. This type of device could help identify parts of the body that are exposed to the highest radiation levels during spacewalks. Results This is the hidden content, please Sign In or Sign Up that this type of device is a feasible way to monitor individual dose during spacewalks. The device also has potential uses on Earth, such as monitoring radiation exposure during ******* treatments. Spacesuit technology Spacesuits are essentially one-person spacecraft that protect their wearers from the hazards of space, including radiation and extreme temperatures. Space station research is helping improve the suits and tools for spacewalks and activities outside spacecraft and for the exploration of the Moon and Mars. This is the hidden content, please Sign In or Sign Up , a JAXA (Japan Aerospace Exploration Agency) investigation, evaluated the durability of a fabric with imbedded sensors to detect damage. Sensors integrated into the exposed outermost layer of a spacesuit could detect damage such as impacts from micrometeoroids. Researchers This is the hidden content, please Sign In or Sign Up factors to consider in design of textiles with sensing capabilities as well as the ability to withstand the hazards of space. Such fabrics could be integrated into spacesuits and habitats to help protect astronauts on spacewalks and future exploration missions. This is the hidden content, please Sign In or Sign Up NASA astronaut Patrick G. Forrester works with the MISSE facility.NASA Researchers use the Materials International Space Station Experiment or MISSE facility on the exterior of the space station for experiments exposing various materials and components to the harsh environment of space. Along with solar cells, electronics, and coatings, This is the hidden content, please Sign In or Sign Up tested pristine fibers from Apollo mission spacesuits and others scratched by lunar dust to examine the combined effects of abrasion and radiation damage. Researchers This is the hidden content, please Sign In or Sign Up that the fabrics significantly degraded, suggesting the need for ways to prevent or mitigate radiation damage to spacesuits on extended missions to the Moon. This is the hidden content, please Sign In or Sign Up tested spacesuit materials treated with shear-thickening fluids. These suspensions of tiny particles in a fluid react to stress by quickly changing from a liquid to a solid. The research This is the hidden content, please Sign In or Sign Up that the materials maintained their mechanical performance characteristics and puncture resistance after extended exposure. Keeping cool also is important on a spacewalk, where temperatures can reach 250 degrees. This is the hidden content, please Sign In or Sign Up , or Spacesuit Evaporation Rejection Flight Experiment, tested a technology using water evaporation to remove heat from a spacesuit so crew members and equipment remain at appropriate temperatures during spacewalks. A current cooling method, called sublimation, exposes small amounts of water to space, causing it to freeze and then turn into vapor that disperses, removing heat as it does so. The SERFE technology may be less susceptible to water contamination than sublimation. Exiting station This is the hidden content, please Sign In or Sign Up The Nanoracks Bishop Airlock is attached to the Canadarm2 robotic arm as the International Space Station orbits 264 miles above the Atlantic Ocean off the coast of Brazil. Ocean off the coast of southern Brazil at the time of this photograph.NASA Crew members use specialized airlocks to exit the station for spacewalks. Airlocks also make it possible to deploy satellites and other external equipment. The This is the hidden content, please Sign In or Sign Up was the first commercially owned and operated airlock installed on the space station. Its size, design, and automation enable faster and more efficient movement of materials out of and into the station, reducing the crew and robotics time needed. In addition to facilitating spacewalks, this facility could support increased commercial use of the space station and expand research capabilities. 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