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 ...

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

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

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

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

The galaxy cluster appears hotter and more mature than it should for its young age, challenging what we think we know about ...

Advanced aliens could be chatting with each other using light flashes in plain sight, similar to how fireflies communicate, ...

NASA's SPHEREx telescope unveiled its first full-sky map of the universe, combining more than 100 infrared observations into ...

A potential new type of celestial object has all the makings of a normal small galaxy. It’s rich with the same hydrogen gas ...

One of the biggest recent surprises in astronomy is the discovery that most stars like the Sun harbor a planet ...

If you’ve been seeing an unusually bright ‘star’ in the sky recently, it’s actually Jupiter, which will shine at its ...

BEIJING, Jan. 7 (Xinhua) -- China has made progress in scientific data simulation for the Chinese Space Station Telescope (CSST), also known as the Xuntian Space Telescope, marking a crucial step in ...