If you want to make the case that spaceflight is about to take a giant leap, SpaceX's next cargo run to the International Space Station for NASA could be Exhibit A.
Astronomers have captured a stunning new view of the surface of an aging red giant star, revealing new clues about what the future may hold for our own sun.
The true story of 13 women who underwent the same medical testing as NASA's original Mercury astronauts at the start of the space age is being developed as a new miniseries for Amazon.
Data gathered by satellites circling Earth since 1997 come together in a breathtaking time lapse of our dynamic planet.
Despite very considerable successes, there remains much more to be learned. And in some ways, the discoveries made in recent decades have raised as many new questions as they have answered.
Bad news for microbes on Mars: A new paper argues that dark streaks on the Martian surface are not caused by underground supplies of liquid water.
An extensive hole opened up in the sun's atmosphere, allowing solar winds to rush out into space.
A star-forming galaxy 12.8 billion light-years away offers insight into the early days of our universe after the Big Bang roughly 13.7 billion years ago.
Space is a glamorous place to work, but for astronauts it is also a dangerous environment. A new sci-fi short called "Others Will Follow" beautifully shows that tension. Space.com spoke with filmmaker Andrew Finch.
Skywatchers are on the lookout for China's Tiangong-1 space lab — and the seeing is good.
Amazing new video of a Mars-bound parachute shows the special device unfurling faster than the speed of sound.
Mashed potatoes are one of the most enduring memories for SETI Institute senior astronomer Seth Shostak as he thinks back to his first viewing of "Close Encounters of the Third Kind" four decades ago.
The interstellar asteroid that zoomed past Earth last month is like nothing we’ve seen before, new observations reveal.
While rocket science is notoriously tough to understand, a new book by an aerospace engineer shows it can be explained in a simple way.
This challenges the history of astronomy and tells us that Aboriginal Australians were even more careful observers of the night sky than they have been given credit for.
The short answer is that most satellites don't come back to Earth at all. Most of them burn to a crisp before they get anywhere near the ground.
A faint spiral galaxy lurks in deep space in this stunning view of the Pleiades, an open star cluster in the constellation Taurus.
It's almost time to bid a fond farewell to the showpiece of the solar system: the magnificent ringed planet Saturn.
Injecting particles into the atmosphere would deflect some of the sun’s incoming radiation, but a new study predicts it would also likely alter tropical storm patterns in the Atlantic and increase the risk of drought in Africa.
Mariner 9, which arrived at Mars in November of 1971, was the first spacecraft to orbit a planet other than Earth, and sent back more than 7,000 images the Red Planet.