On Mars, just as on Earth, gravity can send material tumbling down steep slopes — and the results can be stunningly pretty, as shown in this photograph NASA released today.
Scientists just felt the Red Planet move under their feet — robotically from millions of miles away, on the stark surface of Mars.
A space rock called Bennu is getting its close-up: NASA's OSIRIS-REx mission to explore the asteroid has entered a new phase of detailed survey work.
On April 4, the Hayabusa2 spacecraft tossed a bomb at a space rock and watched the impactor soar toward the asteroid, called Ryugu.
And you thought unpredictable spring temperatures were annoying: On Saturn's moon Titan, chilly polar vortex periods can last to the summer solstice.
Earth is one of thousands of planets known to date — but it's the only world we know of that hosts life, and that's worth celebrating.
A solid metallic core nearly as large as Earth's might be lurking deep within the solar system's smallest planet.
Jerrie Cobb, the first woman to pass all the same preflight tests as NASA's seven Mercury astronauts, has died.
They say dress for the job you want, not the job you have, but it doesn't seem like the heroines of the first two "Star Wars" trilogies got that memo.
NASA's next long-duration spaceflight mission has already begun, and doctors are excited about what it could teach them.
If the idea of an asteroid slamming into Earth keeps you up at night, spare a thought for a mission called NEOWISE, which reincarnated a former astrophysics spacecraft to hunt for nearby space rocks.
NASA astronaut Christina Koch is going to break a record on her first spaceflight, the agency announced yesterday (April 16).
It took eight telescopes across the planet a week to produce the black hole image that stunned the world last week, but it took scientists much longer to teach those instruments to work together.
Within two weeks of beginning its third observation period, the LIGO project has spotted the gravitational-wave signatures of what could be another two black hole mergers.
An unassuming spacecraft called Beresheet shot for the moon. It couldn't quite stick the landing, but it has plenty of company in its disappointing fate.
The solar system is full of volcanoes — but scientists may have just identified an entirely new type of volcanic activity.
If you've got a case of the Mondays, NASA is here to help: the agency will be broadcasting live as two astronauts climb outside the International Space Station for a spacewalk today.
Israel's Beresheet lander finally concluded a spiraling journey out of Earth's orbit and into the moon's, and the SpaceIL team celebrated with stunning photographs of the far side of the moon.
NASA's record-breaking solar mission silently completed another close pass of the sun yesterday (April 4).
Japan's Hayabusa2 probe deployed a heavy copper plate toward the asteroid Ryugu last night (April 4), in an effort to create an artificial crater.