A mysterious "kick" in the early universe may have produced more matter than antimatter. And that imbalance may have also led to the creation of dark matter, researchers now say.
This hazy spiral galaxy is one of the largest in the Virgo cluster — a collection of more than 2,000 galaxies.
Data from one of Cassini's last flybys of Titan probed the depths of Kraken Mare to better understand the moon's alien chemistry.
Ever ridden a teacup ride at a state fair? If so, you might have a small taste of life in a whirling, twirling sextuply-eclipsing sextuple star system.
The universe may be filled with "mirror" particles — and these otherwise-undetectable particles could be shrinking the densest stars in the universe, turning them into black holes.
Quantum entanglement could in theory lead to extremely precise clocks that can hunt for subtle disturbances in space-time.
The haze shrouding Pluto might be made up of ice crystals possessing cyanide hearts, a new study finds.
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A new study on the rotation of the universe's first light could suggest physicists need new rule-breaking subatomic particles
Three years ago, two neutron stars collided in a cataclysmic crash, the first such merger ever observed directly. Naturally, scientists kept their eye on it — and now, something strange is happening.
SpaceX plans to test-fire its enormous Starship prototype's engines in Boca Chica, Texas at some point today (Jan. 20).
Regular energy flares that emerge from galaxy ESO 253-3 are produced by a black hole about 20 times larger than the one at the center of the Milky Way.
Particles called axions may be the reason the 'Magnificent 7' cluster of neutron stars emits extreme X-rays.
Data from the now-destroyed Arecibo radio telescope has revealed a bizarre new type of hybrid venomous-spider star.
NASA fired up the core stage of its massive new megarocket Saturday (Jan. 16) in a critical test that appeared to shut down early.