Virgin Galactic just pushed its flagship aircraft higher and faster than ever before. Here's a look at the SpaceShipTwo in action.
This uranium-based reactor would use nuclear fission energy to power small spacecraft and possibly installations on Mars.
The space agency's Commercial Crew Development effort directs a big chunk of change to four private enterprises, including Jeff Bezos' Blue Origin and Elon Musk's SpaceX.
Today's Google doodle -- the company logo on Google's home page -- and a new documentary commemorate the 50th anniversary of Yuri Gagarin becoming the first man in space.
In a dramatic break with the past, the Obama administration's 2011 NASA budget ends the agency's moon program and calls for shifting manned launches to private industry.
In a Russian research facility, six men are closed into spacecraft-like quarters for 105 days to see how a crew might fare on a trip to the Red Planet. And that's the short trial run.
Space Adventures says the cost of a flight to the International Space Station aboard the Russian Soyuz rocket will go up as much as $20 million in coming years because of inflation.
Golden Spike, a company full of ex-NASA people, announces ambitious plans to launch commercial spaceflights to the moon by 2020.
Three days after a last-second launch abort, a commercially developed rocket and cargo ship blasted off on NASA's first commercial flight to the International Space Station.