Astronomers are rethinking one of cosmology’s biggest mysteries: dark energy. New findings show that evolving dark energy models, tied to ultra-light axion particles, may better fit the universe’s ...

In a world first, plasma “fireballs” have been created in the lab setting using the Super Proton Synchrotron accelerator at ...

The flare came from a supermassive black hole that's 10 billion light years away, making the flash the most distant one ...

An international team led by ICREA researcher Mark Gieles, from the Institute of Cosmos Sciences of the University of ...

The most massive stars in the universe are destined to explode as brilliant supernova before collapsing into black holes. Yet ...

Comet 3I/ATLAS is only the third confirmed interstellar object ever spotted, travelling over 130,000 mph and carrying chemical signatures older than our Sun ...

Physicists show knotted cosmic strings may have dominated the early universe before collapsing to create matter—a theory ...

The universe's first galaxies were hot messes, according to a recent study. During their younger days, they were wild, ...

Are we truly alone—or just unable to hear anyone else? A NASA scientist suggests alien tech may exist, but not in the form we've always imagined.

One of those ground-based telescopes is the Rubin Observatory, named after famed astronomer Vera Rubin. Unlike other ...

The Big Bang theory has dominated our understanding of the universe’s origin for almost 100 years. It describes a moment when ...

If it is a galaxy, it would be the oldest known galaxy in the cosmos, but it could also be a brown dwarf or an early black hole.