Explore astronomy, from the latest trip to the International Space Station to alien planets outside our solar system.
The International Space Station may be complete, but the outpost's crew still has some assembly to do. NASA's shuttle Endeavour delivered a large LEGO space station for astronauts aboard to build.
Atlantis's final launch is also the final launch of the space shuttle program.
A shower of the mineral olivine is helping scientists understand why comets, which form in the outskirts of our solar system, contain the same type of crystals.
When a woman tries to clandestinely sell a purported moon rock, an undercover NASA agent is there.
When the unmanned spaceship, more formally known as Automated Transfer Vehicle 4, launches toward the space station in February 2013, it will carry Einstein's name.
When astronauts go spacewalking outside their spacecraft, they need the protection of a spacesuit, but sometimes with all that gear on, even the tiniest discomfort can be a big pain.
Former Apollo astronaut and moonwalker Harrison Schmitt calls for the replacement of NASA with a new National Space Exploration Administration (NSEA).
Infrared images revealed the buried structures.
Video: Astrophysicist is using 3-D images generated by a supercomputer to understand what happens with a supernova explodes.
The new map could help scientists determine how and why the Milky Way moves the way it does.
NASA will cease its efforts to contact Spirit, a Mars rover that explored Mars from 2004 to 2010 before going silent.
Kennedy's speech turned NASA into 'a big space-spectacular agency.'
Astronauts will try out a new set of exercises to prepare them for the change in pressure they encounter during spacewalks.
The private rocket also launched with a load of student experiments.
The six visiting astronauts of Endeavour's STS-134 mission, and the six space station residents, are juggling different sleep shifts and overnight work hours.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.