NASA combined 10 years of solar observations into a single, gorgeous time-lapse video.
Using thousands of seismic wave recordings, researchers mapped the mysterious 'blobs' deep below the Pacific Ocean and found they are even bigger than imagined.
Twin shock waves produced by the galaxy's central black hole could have inflated the gargantuan Fermi Bubbles about 6 million years ago, a new study suggests.
Photographer Andrew McCarthy photographed the demarcation between the moon's light and dark sides for two weeks to create this unbelievably crisp image of our satellite's Earth-side craters.
An unusually strong polar vortex kept an ozone hole open over the North Pole for nearly a month — now, it's finally shut again.
The alleged exoplanet Fomalhaut b was discovered in 2004 and disappeared in 2014. Astronomers now say it was never a planet to begin with.
A record-size hole in the ozone layer has been detected over the North Pole, but it should disappear in a few weeks.
In six studies published March 16 in a special edition of The Astrophysical Journal supplemental series, astronomers used NASA's Hubble Space Telescope to spy on 13 quasar outflows.
Researchers discovered an uncharted island beneath melting Antarctic ice. Its rocky underbelly could hold clues to the continent's response to climate change.
Astronomers discovered a 'minimoon' that's been orbiting Earth for about three years, and may soon leave our planet's orbit.
The 12 constellations of the Zodiac contain some of the weirdest, most wonderful objects in the universe. Here are our favorites.
Antarctica saw two record-high temperatures set between Feb. 6 and Feb.9, and that took a huge toll on the continent's ice, as seen in NASA images.
A huge chunk of ice twice the size of Washington, D.C., just broke off of Antarctica's Pine Island glacier, continuing a troubling trend that could signify glacial collapse.
Solar super-storms capable of damaging electric grids and satellite networks may be much more common than previously thought, a study of Earth's oldest geomagnetic index suggests.
Astronomers uncovered a pair of invisible stars creating ripples in space-time, a phenomenon known as gravitational lensing.
A Boeing satellite is being hastily moved into "graveyard orbit" following a devastating "anomaly" that turned its batteries into bombs.
There's a faint gamma-ray background in the universe, and scientists now think it could be caused by dark matter.
The black hole at the center of our galaxy is warping and combining stars into a strange new kind of object, astronomers say.
The US Navy confirmed they have secret, classified documents regarding a 2004 UFO encounter, but releasing them could 'gravely damage' national security.
A newly discovered suburb of baby-booming stars, known as the Radcliffe Wave, may be the largest structure in the Milky Way.
A private UFO enthusiast has donated his collection of 30,000 documents to the University of Manitoba in Canada. The truth is in there.
The ESA has announced a mission to launch a four-armed robot to grab a single piece of space junk and drag it into the atmosphere.