Explore astronomy, from the latest trip to the International Space Station to alien planets outside our solar system.
As the anniversary of the first person in space approaches, a look back at some of the most impressive records in space history.
Without the Soviets rushing into space, the American push to the stars may not have happened as quickly.
The space shuttle, the first reusable spaceship ever built, has had an indelible impact on America.
Scientists suspect the star may have drifted too close to a black hole and was torn apart.
Essential employees — those who keep astronauts safe and technology functioning — would remain while other employees would most likely be furloughed.
Wandering asteroid could have come from the asteroid belt or leftover debris from an ancient impact on the Moon.
NASA is studying a surprising cosmic burst in a distant galaxy that has burned for more than a week, longer than astronomers have ever seen.
Cuts in the agency's life and physical science programs has left it ill-prepared for new goals of deep space exploration
First launch of SpaceX's heavy rocket could be as soon as soon as 2013.
There are up to 30 percent more fireballs and meteoroids in spring than in autumn, and scientists are not exactly sure why.
The Smithsonian and Kennedy Space Center are almost certainly locks to received a retired shuttle, but supporters say Space City should receive one, too.
A new graphic shows all 1,235 alien planet candidates discovered thus far by NASA's Kepler mission, along with their host stars.
Practice run allowed astronauts to practice escaping from a shuttle in the case of an emergency.
The home of NASA is courting space programs from Britain and Brazil that need locations to launch satellites.
Scientist thinks that lakes of liquid ethane, common in brown dwarfs, could be an ideal home for life-creating microbes.
Eco-entrepreneur on politics, energy and Earth's resources.
Russell blogs about the day's top science and eco-news.