Birth of 'Great Dark Spot' Storm on Neptune Seen for 1st Time (Photo) By Mike Wall For the first time ever, astronomers have witnessed the birth of one of Neptune's enormous 'Great Dark Spot' storms.
Chemically, Earth Is Basically a Less Volatile Version of the Sun By Mindy Weisberger The elemental composition of Earth and sun are unexpectedly similar.
Universe Quickly Spawned Stars After Big Bang, Ancient Galaxy Shows By Nola Taylor Redd Observations of the most distant galaxy ever identified revealed traces of oxygen from at least one previous generation of stars, a sign that star formation got off to an early start.
Image of the Day By Hanneke Weitering Colorful cosmic "fireworks" decorate the night sky over the La Silla observatory in Chile in this gorgeous image by the European Southern Observatory's resident astrophotographer Petr Horálek.
Physicists Think They've Figured Out the Most Extreme Chemical Factories in the Universe By Rafi Letzter Our world is full of chemicals that shouldn't exist. New research could explain why they exist anyway.
The Universe's Dark Secret: Where Did All the Antimatter Go? By Paul Sutter So there's this stuff called "antimatter." But a weirdly small amount of it.
The 'True' Neutrino Has Hidden from Physicists for Decades. Could They Find It in Antarctica? By Paul Sutter Neutrinos are the changelings of the subatomic world, but physicists are getting closer to pinning down the particles' true identities.
Truly Spooky: How Ghostly Quantum Particles Fly Through Barriers Almost Instantly By Mindy Weisberger Scientists recently unraveled a physics puzzle that has stymied experts since the dawn of quantum mechanics.
'Artificial Gravity' Bed-Rest Study to Track Space Travel's Effects on Human Body By Mike Wall Some brave people will soon lie down for science — and they won't get up for a long, long time.
Space Development Agency Promises to Do More with Less By Sandra Erwin The Space Development Agency officially came into existence last week and already is causing a stir.
Mariner's Astrolabe from 1503 Shipwreck Is World's Oldest By Stephanie Pappas An astrolabe found at a shipwreck site in Oman is the oldest one ever discovered.
Whirling 'Cannonball' Pulsar Flees Supernova Site at Epic Speed By Sarah Lewin A supernova explosion flung out a super-dense, whirling stellar core, sending it streaking across space at almost 2.5 million miles per hour with a glowing trail 13 light-years long in its wake.
Powerful Bering Sea Fireball Spotted from Space in NASA Photos By Mike Wall NASA's Terra satellite captured striking views of the meteor that exploded over the Bering Sea on Dec. 18, 2018.
These Two Cosmic 'Chimneys' Could Be Fueling the Galaxy-Sized Bubbles Looming Over the Milky Way By Brandon Specktor Scientists made an X-ray map of the center of the galaxy — and they found two chimneys of plasma.
Meet 'Kazachok': Landing Platform for ExoMars Rover Gets a Name By Mike Wall The Russian-built landing platform for the ExoMars rover now has a name: 'Kazachok.'
NASA May Send a Smallsat Mission to the Giant Asteroid Pallas By Meghan Bartels NASA is considering funding a mission that would send a satellite the size of a mini-fridge to the asteroid belt to examine an unexplored world: a massive asteroid scientists call Pallas.
NASA's Chandra Space Telescope Captures the Tempest in a Cosmic 'Teacup' By Samantha Mathewson A powerful quasar has caused a raging storm in a distant cosmic structure known as the "Teacup."
More Than One Reality Exists (in Quantum Physics) By Mindy Weisberger Can two versions of reality exist at the same time? Physicists say they can — at the quantum level, that is.
Why This Poisonous Gas Could Be a Sign of Alien Life By Mike Wall Scientists hunting for signs of alien life shouldn't be so quick to dismiss carbon monoxide, a new study suggests.
