For the first time ever, astronomers have witnessed the birth of one of Neptune's enormous 'Great Dark Spot' storms.
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.
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.
Our world is full of chemicals that shouldn't exist. New research could explain why they exist anyway.
Neutrinos are the changelings of the subatomic world, but physicists are getting closer to pinning down the particles' true identities.
Scientists recently unraveled a physics puzzle that has stymied experts since the dawn of quantum mechanics.
The Space Development Agency officially came into existence last week and already is causing a stir.
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.
NASA's Terra satellite captured striking views of the meteor that exploded over the Bering Sea on Dec. 18, 2018.
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.
Can two versions of reality exist at the same time? Physicists say they can — at the quantum level, that is.
Scientists hunting for signs of alien life shouldn't be so quick to dismiss carbon monoxide, a new study suggests.