Stepping out of a capsule no bigger than a modest home kitchen, the four-person crew of NASA’s latest Human Exploration Research Analog study “returned” to Earth last month after a 45-day mission to fictional asteroid Geographos. Although the capsule never actually left NASA Johnson Space Center in Houston, the mission’s results could shape how the space agency’s astronauts someday handle the isolation, confinement and sleep deprivation likely to occur during interplanetary travel. Read More...