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.
NASA is going to light up the most powerful rocket it's ever built Saturday (Jan. 16), though it won't go anywhere.
The collapse of the iconic radio telescope at the Arecibo Observatory in Puerto Rico last month has left astronomers with a host of questions about what went wrong and what comes next.
A rapidly twirling, ultramagnetic 500-year-old infant has been spotted zipping at never-before-seen speeds through the Milky Way. It belongs to a super-rare flavor of super-rare star.
There have been no signs of supersymmetry, and the theory is looking a little shaky, researchers say.
NASA plans to ignite an absolutely mammoth rocket on Jan. 17, the largest it's built since the Apollo program
Mercury, Jupiter and Saturn will form a tight triangle in the sky this Sunday during a rare 'triple conjunction' event.
Harvard astrophysicist Avi Loeb has reignited a debate about whether alien life can explain an object that visited the solar system in 2017 in a scathing new book.
New research proposes that the first black holes came from clumps of gravitinos, exotic, hypothetical particles that managed to survive the first chaotic years of the Big Bang.
Similar to the bonds found in water, but way more powerful, this new bond could offer deep insight into the true workings of chemical reactions.