Explore astronomy, from the latest trip to the International Space Station to alien planets outside our solar system.
The debris would join other exhibits in the The National Air and Space Museum designed to explain the tragedies and the lessons learned from them.
The star unleashed two powerful solar eruptions in a spectacular double blast caught on camera by a NASA spacecraft.
Brightest star in the sky is particularly visible this week in the east southeastern sky.
NASA is holding public panels to receive input and return to 'roots as a true innovator.'
Scientists discount the idea that Betelgeuse star will be as bright as another sun, saying it will resemble the brightness of a crescent moon.
Galaxy is believed to have existed 480 million years after the Big Bang.
The photo contest requires its amateur astronomers to first find the solar sail and then submit their best images.
Astronomers say they have an image of what may be the oldest galaxy ever seen, a starry cluster that came into being when the Universe was a baby.
NASA educator astronaut Barbara Morgan reflects on the space shuttle Challenger accident 25 years ago that killed America's first teacher astronaut, Christa McAuliffe.
On the 25th anniversary, a look back at the tragic space mission that transformed NASA.
Part 2 of a series exploring the cosmos from the perspective of Vatican astronomers.
NASA marks multiple tragedies this week with a special Web telecast commemorating Apollo 1, Challenger and Columbia.
Satellite's mission is to test use of solar sails in space as power alternatives for low-orbit space craft.
Part 1 of a series exploring the cosmos from the perspective of Vatican astronomers.
NASA has officially set a launch date for the STS-135 mission of shuttle Atlantis, the very last space shuttle flight before it's retired.
Eco-entrepreneur on politics, energy and Earth's resources.
Russell blogs about the day's top science and eco-news.