When astronauts stay in outer space for extended periods, they frequently develop a vision problem known as spaceflight-associated neuro-ocular syndrome (SANS). Scientists are now trying to keep that ...

NASA astronauts' new high-tech vacuum sleeping bags seek to provide a solution to their vision problems as the space agency gears up for long-term missions to the Moon and, later on, Mars. JEZERO ...

A new sleeping bag may stop astronauts' eyeballs squashing in zero-gravity, per a study reported by the BBC. The bags created a vacuum which sucked body fluids from the head towards the feet, the ...