"We don't know if this object is the heaviest known neutron star, or the lightest known black hole, but either way it breaks a record."

A new machine can mimic the swirls that the blast of a supernova explosion creates. Check out the show for yourself.

"This tells us that the basic organic chemistry needed for life is present in the raw gas prior to the formation of stars and planets."

Tiny meteoroids on a far off asteroid could explain how we got both water and "stardust" on Earth.

The exoplanet Fomalhaut-b likely never was, say astronomers. Their work suggests an expanding cloud of dust instead.

The Milky Way may be catapulting stars into its outer galactic halo, researchers say. The finding could change how we think about how star systems are born.

Researchers have discovered the brightest supernova ever seen, dubbing it the "queen of supernovas," It's twice as bright as a regular supernova.

There's a protective bubble around our solar system called the heliosphere. New research may bridge the divide between two major theories.

The star Betelgeuse dimmed 40% last year, fueling popular speculation that the red supergiant would soon explode as a massive supernova.

A massive white dwarf star with a bizarre atmosphere is actually two stars that merged. They just narrowly missed exploding into a supernova, researchers say.