Virgin Galactic's SpaceShipTwo is almost ready to carry tourists to space.
Now that private space plane SpaceShipTwo has made its first rocket-powered test flight, would you ride it?
Virgin Galactic's SpaceShipTwo fired its rocket motor for 16 seconds in the historic April 29, 2013 test flight.
The private Mars One project officially launched its search for astronauts to colonize the Red Planet.
The remains of the 1972 Mars 3 lander might be visible in recent Mars Reconnaissance Orbiter photos.
The U.S. military relies on space resources for every mission, said the commander of U.S. Air Force Space Command.
The night sky view from Chile's Atacama Desert offers stunning views of Southern Hemisphere constellations.
The potential dark matter find announced today wouldn't have been possible without the International Space Station.