A solar jet captured by the Solar Orbiter unleashed a mind-blowing 200,000-fold increase in a rare helium isotope, 3He – far ...

A freshly-discovered comet has lots of skywatchers training their telescopes on the dawn sky, but pretty soon the new Comet SWAN25F will flip to our evening sky, and allow a lot of us to get a good ...

NASA’s James Webb Space Telescope provided a closer look at the aftermath of a star that wreaked violence on its planet ...

When a star comes to the end of its life and dies, it can be an epic and destructive event, throwing out an explosion of heat and light — but it can create stunning new forms as well. A gorgeous new ...

NASA's James Webb Telescope has been investigating the first-ever case of a star caught swallowing a planet —and, in classic crime thriller style, there has been a plot twist.

We haven’t yet figured out what gives them their shape, determines their altitude – or makes them rain when they do. What’s ...

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

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 ...

The swirling, paint-like clouds in the darkness of space in this stunning image seem surreal, like a portal to another world ...

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

Ansky was first seen erupting in 2019, with bursts of X-ray light from February 2024. These repeated at almost regular ...

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