Most scientists agree the prolonged flash likely occurred when a black hole ate a star, but two other ideas can't be ruled ...

NASA has visualized the cataclysm, which is thought to have caused a mysterious eruption of gamma rays captured by telescopes ...

New simulations of Milky Way-like galaxies reveal that the strange split between two chemically distinct groups of stars may ...

From your place inside the Milky Way, you are living within a galaxy that keeps a detailed chemical diary. Every star holds ...

Astronomers watched as a black hole whipped up cosmic winds that shot material into space at 37,280 miles per second (60,000 ...

A team from the Institute of Cosmos Sciences at the University of Barcelona (ICCUB) has published a paper that reveals ...

Black holes, born from dying stars, are cosmic giants that grow by consuming matter and merging with others. While invisible ...

Galaxy Alaknanda challenges long-held theories of galaxy formation, which maintained that stable spiral galaxies could only ...

Scientists believe that the universe on very large scales is made of a network-like distribution of galaxies, gas and dark ...

Some of the elements used by living systems are far more abundant in Cassiopeia A than we thought, hinting that some parts of ...

Clues about how galaxies like our Milky Way form and evolve and why their stars show surprising chemical patterns have been ...

Dark matter is special in that it doesn't emit, absorb or interact with light, so science had to find a more creative way to ...