6 Reasons Astrobiologists Are Holding Out Hope for Life on Mars By Isobel Whitcomb There are some very good reasons to believe that primitive lifeforms may lurk on the Red Planet.
Something Weird Is Happening to the Black Hole at the Center of the Milky Way By Meghan Bartels Astronomers have been watching the black hole at the center of our galaxy for 20 years, and in May, they saw something they'd never seen before.
There Are Thousands of Tardigrades on the Moon. Now What? By Mindy Weisberger What might it mean for the moon to have thousands of tardigrades as new inhabitants?
Astronomers Uncover 39 Ancient Galaxies — Moving So Fast That Even Hubble Can't See Them By Rafi Letzter There are ancient, massive galaxies haunting the dusty reaches of our universe, invisible to the Hubble Space Telescope. But now astronomers sifting through infrared data have discovered 39 of them.
'Interplanetary Shock' Seen for 1st Time By Meghan Bartels A team of four NASA spacecraft finally caught sight of a phenomenon scientists have been hunting for years: an interplanetary shock.
Space Dust from Ancient Supernova Found Hiding in Antarctica By Mindy Weisberger Researchers recently identified cosmic iron traces in snow that fell in Antarctica. Preserved in the snow was dust containing a rare isotope that originated in a supernova.
Cloaked Black Hole Found Hidden Behind Gas Cloud in Early Universe By Passant Rabie A cloaked black hole found lurking behind a cloud of gas dates to the early cosmic years of the universe.
Tardigrades and Poop: What Does Space Law Say About Moon Clutter? By Yasemin Saplakoglu In recent decades, the moon has gathered a bit of invisible clutter.
Moonquake Detectives Decode Pattern Left on Lunar Surface Jan. 3, 1975 By Rafi Letzter It seems that at some point after astronauts visited the moon, a powerful moonquake sent boulders tumbling across the lunar surface. Here's what they tell us.
How to Watch the 2019 Perseid Meteor Shower Live Online By Elizabeth Howell One of the year's brightest meteor showers is about to take flight. If you face cloudy or light-polluted skies at home, however, never fear — the Perseids will also be streamed online.
Skywatching Spider Photobombs Perseid Meteor Shower By Meghan Bartels How do you spot a "shooting star"? Well, you don't look for eight legs; that's for sure.
X-37B Military Space Plane's Latest Mystery Mission Hits 700 Days By Mike Wall The U.S. Air Force's X-37B military space plane has now been circling Earth for 700 days, just a few weeks shy of the vehicle's spaceflight-duration record.
Earth's Last Magnetic-Field Reversal Took 22,000 Years By Passant Rabie Volcanic records revealed the complexity of the magnetic-field reversal.
Mysterious, Ancient Radio Signals Keep Pelting Earth. Astronomers Designed an AI to Hunt Them Down. By Rafi Letzter
3 Physicists Win $3 Million Prize for 'Supergravity' Discovery By Mike Wall Supergravity has inspired physicists for decades and may contain deep truths about the nature of reality.
Thousands of Tardigrades Stranded on the Moon After Lunar Lander Crash By Mindy Weisberger When you look up at the moon, there may now be a few thousand water bears looking back at you.
Why Thousands of Hawaiians (Including Jason Momoa) Are Protesting a Giant Telescope on Mauna Kea By Rafi Letzter Native Hawaiians argue that the Thirty Meter Telescope, set for construction on the sacred site, was planned without care for their concerns.
Apollo Samples Reveal the Moon Is Millions of Years Older Than We Thought By Brandon Specktor Study: The moon is very, very, very old.
Bits of Corpse from One of the Universe's Oldest Stars Found Inside Its 'Child' By Mindy Weisberger An ancient star in the Milky Way holds traces of another star that was among the oldest in the universe.
