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 ...

A massive black hole at the heart of a galaxy in the Virgo constellation is waking up, shooting out intense X-ray flares at ...

The star ZTF SLRN-2020 was believed by astronomers to have swollen up and engulfed a planet. Recent studies, however, suggest ...

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 ...

This is a still from an animation showing asteroid 2024 YR4 as it passes by Earth and heads toward its potential impact with the Moon. This 3D shape of the asteroid was determined from data obtained ...