This unprecedented view of the Bullet Cluster provided by the James Webb Space Telescope and the Chandra X-ray Observatory ...

New observations show a star that blew up in two separate bursts, confirming a long-suspected cosmic phenomenon called a ...

University of Arizona astrophysicist Erika Hamden takes readers on a romp through a "Weird Universe" in her debut popular ...

The ALMA radio telescope array in the Atacama Desert temporarily halted operations after a rare snowfall blanketed the base ...

The planet Neptune has a large dark spot "with an unexpected smaller bright spot adjacent to it," inveru observations using ...

Astronomers have taken the first ever image that shows what happens when a star explodes twice in a supernova.

YR4 won’t hit Earth, but a 4% chance remains for a lunar impact. ESA's upcoming NEOMIR telescope could revolutionize early ...

Sculptor—officially labeled NGC 253—is considered a starburst galaxy, one heavy with stellar action. It's located 11 million light-years away in the Southern Hemisphere's constellation Sculptor, and ...

Because it doesn't interreact with light or electromagnetism, dark matter exists to us only through its influence on visible ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

Astronomers are tracking a newly spotted comet hailing from parts unknown, only the third time such an interstellar object ...

We have discovered two interstellar objects so far, ’Oumuamua and Comet 2I/Borisov. ’Oumuamua had no dust tail and a ...