Before NASA's Cassini spacecraft plummeted into Saturn this year, it took this final photo of Rhea, the second-largest moon orbiting the ringed planet.
The president of SpaceX said she expects the company would receive additional funding from the U.S. government to support the development of its large reusable launch system.
Scientists at NASA's Goddard Space Flight Center have released this gorgeous visualization of one of their weather models.
A new book by astrophysicist Caleb Scharf, "The Zoomable Universe," takes readers all the way from the size of the observable universe — as far as light can travel in 13.8 billion years — down to the shortest theoretical measurable length.
Fast-moving dust could theoretically knock microbes floating high up in a world's atmosphere out into space, potentially sending the bugs on a trip to another planet — perhaps even one orbiting a different star, according to a new study.
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.
It's Black Friday, space fans, so here's a roundup of the best online deals for out-of-this-world "Star Wars" merchandise on Amazon.
It's Black Friday, space fans, so here's a round-up of the best deals online for out-of-this-world telescopes, toys and more.
Here's a guide to the major astronomical events of the next year, as well as space launches and milestones for spacecrafts already in travel.