Explore astronomy, from the latest trip to the International Space Station to alien planets outside our solar system.
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.
The technology behind memory foam, sunglasses and cellphone cameras all come from the space agency's work to explore the solar system.
The sun appears to fade away in this spectacular photo from NASA's Solar Dynamic Observatory.
Dark matter may provide the necessary building blocks for organic life to develop on nearby planets.
Museums nationwide reveal plans for proposed space shuttle exhibits in hopes of being chosen.
This first-ever photo reveals a stark landscape peppered with craters.
The space cargo ship met its fiery demise overnight one day after its departure from the International Space Station.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.