An analysis of star movements from the Gaia spacecraft reveals that the Small Magellanic Cloud — a satellite galaxy bound to ...

Astronomers have discovered a rare pair of white dwarfs destined to explode in a spectacular supernova in Earth’s cosmic ...

The team used more than a decade’s worth of observations of Uranus’ unique aurorae taken with Hubble and refined the planet’s ...

The black hole at the heart of galaxy SDSS1335+0728, located 300 million light-years away, was quiet for decades as it consumed little matter and was in a dormant state. But recently it suddenly lit ...

Scientists have observed a previously inactive supermassive black hole producing regular, powerful X-ray eruptions that ...

In a star’s core, fusion takes terrific temperature and pressure that is provided by the crushing gravity of the star’s overlying mass. For a star to be relatively stable, the outward force of the ...

Astronomers have revealed an exoplanet called Enaiposha to be a one-of-a-kind "super Venus" whose carbon-dioxide-rich ...

Swarms of satellites launched by SpaceX and other companies are disrupting astronomical observations. Here's how scientists ...

Astronomers have long predicted that two orbiting white dwarfs are the cause of most type 1a supernova explosions. While the ...

Skygazers can enjoy meteor showers and other dazzling displays in the night sky all month long, according to astronomers.

Astronomers find a binary star system that will detonate as a type Ia supernova, offering direct evidence for a top theory ...

Skygazers are still waiting for the celestial event of the year, when a dance between two stars 3,000 light-years away ends in a massive explosion and creates a new dazzling temporary "star" in the ...