Balancing a One Year Space Station Mission Risks

'Balancing' the 1-year mission risks, NASA Johnson Space Center

"If you've ever stumbled out of bed in the middle of the night, fallen out of a yoga pose or had trouble "finding your legs" after hopping off a rollercoaster or a boat, then you know getting your balance can be challenging. This is even truer for astronauts who have just returned from extended spaceflight in microgravity.

Spaceflight causes changes in physiological systems that can affect things like balance, strength, vision and endurance. Although NASA scientists have studied how these changes impact astronaut performance a few days after returning to Earth, a new test promises to provide scientists with data about these changes just moments after crew members exit the spacecraft. This information is increasingly important as NASA moves closer to sending an astronaut to the International Space Station for one year and, eventually, to asteroids and Mars."