The country's longest manned mission is part of their plan for a permanent orbital outpost
Spelunking as a space simulation
These vintage NASA drawings show phases of a lunar mission that we've never seen in photographs.
Budget and scheduling constraints could put astronauts at risk
An interview with Keri Bean, NASA engineer and R2D2's best friend
More than 200,000 aspiring space explorers volunteered for a one-way trip to Mars. Are they insane?
With no plans for future upgrades, the telescope faces a fiery end
Crowdfund this spacecraft and put a piece of yourself in a lunar time capsule
One professor says an asteroid survey would be a better use of NASA's time and money.
Yesterday's Antares failure was not exactly unprecedented.