Mice that spent three months aboard the International Space Station returned to Earth with thinning skin and surprising changes in hair follicles.
Six months after Virgin Galactic's SpaceShipTwo crashed during a test flight, a new version of the suborbital space plane is coming together in a hangar in the California desert.
Extended radiation in space can permanently harm the brain, studies on lab animals showed. Continue reading →
If every failure offers a learning opportunity, what can Apollo 13 teach us?
A private company that aims to send tourists to the edge of space broke a record by flying a parafoil higher than anyone has before.
British singer Sarah Brightman heads to Russia this week to begin training to fly to the International Space Station.
After a two-day orbital chase, the robotic spaceship arrived with food, worms and plants.
Saturday's attempt required a big step up in touchdown precision.
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