Saturn's ring found to be biggest in solar system
It would take about one billion Earths to fill the voluminous ring
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It would take about one billion Earths to fill the voluminous ring
After a mission extension in the wake of a launch failure, three ISS crew members plan to head home Thursday
NASA plans to continue tests of Mars landing technology in the wake of a dramatic parachute failure
Combining 80 NASA images, a new animation provides one of the most detailed portraits of this strange world
Parachute failure ends NASA's test launch of a flying saucer-shaped craft to the edge of space
Marking the 50th anniversary of the day astronaut Ed White made the first ever U.S. spacewalk, we celebrate with highlights of America's odyssey in space
Ted Southern started his career creating costumes for some of the most beautiful women in the world, but now he's shooting for the stars
Instrument selection has taken place for a robotic mission to study the habitability and vast sub-surface ocean of Europa
UAE Space Agency aims to become an industry leader with ambitious new plans, including a mission to Mars
Brighter than 300 trillion suns, it may be anchored by a massive black hole with an insatiable appetite
New images from NASA's Dawn mission are helping unravel the source of several strange bright lights on the dwarf planet
"It doesn't mean that there can't be some power greater than any of us," the astronaut and former U.S. senator said
Scientists observing the remnants of a supernova confirmed the explosion is a wobbly, lopsided affair
The system, still in planning stages, could be used to eliminate some of the space junk that is orbiting Earth
Captured in a video, scientists hope new images could be used to track Neptune's weather and probe its internal structure
"This ice shelf has existed for at least 10,000 years, and soon it will be gone," NASA scientists say
Three astronauts will have to spend an extra month in orbit on the ISS
Many details of the X-37B mission are classified, but here's what we know
The nearly invisible halo is believed to be six times larger and 1,000 times more massive than previously measured
After a failed space station supply mission, the out-of-control cargo ship (what's left of it) could crash down early Friday
The so-called Cinco de Mayo solar flare was the year's biggest and caused radio blackouts in parts of the Pacific
It is one of the biggest, brightest objects from the early universe and formed about 500 million years after the Big Bang
Researchers fear long-term exposure could damage astronauts' brains and nervous systems
NASA's out-of-fuel Messenger spacecraft crashed on the surface of Mercury Thursday, ending an 11-year mission
Russian engineers can't control a supply ship hurtling toward Earth and can't predict just when or where debris may land