The NASA astronauts stranded in space face ‘life-altering’ risks if their stay on the International Space Station (ISS) is extended until 2025, experts warn. Boeing’s faulty Starliner took Barry ‘Butch’ Wilmore and Sunita Williams to the ISS June for what they thought would be a matter of days, but the crew received news this week that they may not come home until next year.
Many studies have found that long stints in space can cause bone density loss, muscle atrophy, intense radiation exposure, vision problems and other significant health issues.Astronauts also receive different levels of training depending on the length of the mission, including health tests, which suggest Wilmore and Williams are not prepared for the trails ahead.