The space shuttle Discovery crew had to fire steering rockets on Friday to dodge a piece of space debris.
Getting humans to Mars will require medical research on the Space Station through at least 2020.
The space shuttle Discovery launched early on Saturday, carrying supplies to the International Space Station.
NASA delayed liftoff of the space shuttle Discovery because of a problem with a valve in its fuel tank.
Space shuttle 'Endeavour' landed in Florida, capping a 16-day mission to complete Japan's orbital laboratory.
Apollo astronauts think the U.S. isn't getting its money's worth from the current space program.
The Lunar Worm is an never-developed vehicle designed to work in low-gravity environments.
Four Russians, a Frenchman and a German ended a 105-day stint in isolation, simulating a space trip to Mars.
What color is the sun? While it most often appears yellow or even orange, blue suns have been documented a few times throughout history.
NASA attempts to launch Endeavour on Sunday to delivery the last piece of Japan's Kibo laboratory to the International Space Station.