Our galaxy's supermassive black hole is famous for being one of the dimmest in the universe. Evidence from a new space ...

From volcanic landscapes to world-class observatories, a journey through the Canary Islands reveals a night sky unlike ...

Decades in the making, NASA's X-ray timelapse shows a stellar explosion expanding into space at up to 2% the speed of light.

Most planetary systems contain worlds larger than Earth but smaller than Neptune, and the low-density planets around one ...

A new survey maps nearby K-type stars and shows why these long-lived, stable stars are important targets in the search for ...

Situated around 17,000 light-years from Earth within the Milky Way Galaxy, the supernova remnant is close enough for NASA’s ...

Astronomers have confirmed a Saturn-size world drifting alone in deep space roughly 10,000 light-years from Earth, a discovery that turns a once-theoretical idea into a measured reality. The planet ...

The discovery of thousands more galaxies with stars ringing their main disks could help astronomers study galactic evolution ...

After a 35-year journey, Voyager 1 finally reached interstellar space in 2012. The most distant human-made has to venture on ...

It's estimated there may be trillions of rogue planets wandering through the Milky Way, unbound to any star. Since detecting ...

Artist's conception of the four planets around a young star observed in this research. The puffy planets may be losing their ...

In the vast calm of the solar system, planetary orbits often appear orderly, stable, and insulated from the broader mechanics ...