Astronomers have traced a mysterious blast of X-rays to a star that, like a cosmic action hero, just refused to die.

When white dwarfs—the hot remnants of stars like our sun—are orbited closely by another star, they sometimes steal mass away ...

The interstellar comet 3I/Atlas is the fastest and largest of its kind, giving astronomers a rare glimpse into extrasolar ...

A team led by the Italian National Institute for Astrophysics discovered the most distant known fossil galaxy — a relic of ...

Stars often die with a final burst of beauty. For the first time, astronomers have captured visual proof that a star can ...

Using NuSTAR and XMM-Newton satellites, astronomers from New York University (NYU) Abu Dhabi have observed a pulsar known as ...

Saturn is a big planet and even though it's getting hit with space debris every day, we've never captured it on camera, but ...

A close-in exoplanet is triggering stellar flares and self-destructing. This is the first direct evidence of planet-star ...

Scientists found low-density amorphous ice in space isn’t fully random - it hides tiny crystals, reshaping our understanding ...

New research is shedding light on what researchers call "lite" intermediate-mass black holes, which are smaller, but still ...

Astronomers investigate a potential impact on Saturn after a bright flash was caught on camera. NASA image may show first ...

Astronomers have finally caught a dying star in space going out with a bang — and then another bang. The new photographic ...