Explore astronomy, from the latest trip to the International Space Station to alien planets outside our solar system.
Scientists think it's unlikely that the flags planted on the moon during each Apollo mission have survived the years.
American astronauts aboard the ISS have begun minimal preparations, namely taking video of tasks in order to quickly train future station staff.
Twin space probes will beam back information about the Moon's surface to help understand its formation and provide NASA with information for future lunar exploration.
The 25th anniversary of the art and self-expression festival had its picture taken from about 370 miles overhead.
Company will continue to work on a suborbital vehicle but will also develop an orbital space capsule that will launch on an expendable Atlas 5 rocket, then transition to a reusable booster.
The pizza company announces 'plans' to build the first restaurant on the moon, but can't guarantee delivery in 30 minutes or less.
Rover reaches the Endeavour crater after traveling since August 2008.
The space agency held ceremonies at its various centers around the country where the space shuttle program was carried out before its retirement.
Video: A university student makes an astronomical discovery so grand she may have an asteroid named for her.
NASA's space debris programs consist of a single staff member.
Proposed roadmap recommends developing plans to go directly to Mars or launching a manned mission to an asteroid.
The cost and logistics of paying for, and covering up, a secret mission into space would prove incredibly difficult.
The Jupiter-bound spacecraft is the first solar-powered one to head for the gas giant.
Russia delayed its next manned spacecraft mission to the ISS after an unmanned cargo vessel crashed instead of reaching orbit on August 24.
NASA will have to pore over the captured images to determine where the meteor eventually faded out in Georgia.
Eco-entrepreneur on politics, energy and Earth's resources.
Russell blogs about the day's top science and eco-news.