Explore astronomy, from the latest trip to the International Space Station to alien planets outside our solar system.
Death of engineer unlikely to delay the April 19 launch of space shuttle Endeavour.
The 'supermoon' will have minimal impact on the Earth, and is not responsible for the earthquake in Japan.
Star is in the process of becoming a white dwarf.
At least one astrologer thinks quakes, eruptions and huge storms are possible.
The devastating earthquake and tsunami that struck Japan were 'completely unrelated' to the approaching 'supermoon,' despite a news report that tied the quake to the lunar event.
Her husband, Mark Kelly, is commander of the Endeavour mission due for lift-off on April 19 on what is scheduled to be NASA's final shuttle flight.
Don't expect cuddly, squishy E.T.s to come calling someday; instead, picture robots descending from the sky.
The museum where Discovery will spend its golden years will be announced on April 12.
Astrophysicist Stephen Hawking and former astronaut Buzz Aldrin are teaming up to develop and promote a unified vision of how humanity can continue to expand its presence in space.
Endeavour will move to launchpad shortly after Discovery lands on March 10.
Astronauts woke up to 'Blue Sky', a song inspired by the Discovery shuttle's flight following the shuttle Columbia tragedy.
Budgetary woes leave NASA attempting to prioritize missions for the next decade.
For the decade 2013-2022, five panels of scientists agreed on a suite of missions that would get the greatest scientific return from money spent.
What on Earth? These photos give a small glimpse of the captivating beauty of our planet.
Scientist calls the double sun a mirage — albeit one that is difficult to explain with science.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.