An oddly tilted object beyond Neptune moves in perfect sync, one orbit for every ten of Neptune’s, and scientists are intrigued.

Astronomers have discovered a bizarre object in the outer solar system, 2020 VN40, that dances to Neptune’s gravitational beat in a never-before-seen rhythm. It’s the first of its kind, orbiting the ...

Astronomers observe a dramatic event on exoplanet TOI 1227 b. This young gas planet is losing its atmosphere quickly. Intense ...

"This is a big step in understanding the outer solar system," team leader Rosemary Pike from the Center for Astrophysics | ...

Researchers use the Subaru Telescope in Hawaii to find a small object on the outer edge of the Solar System. Nicknamed ...

Hubble Space Telescope imagery Neptune has revealed that the planet's clouds are disappearing. Credit: NASA Goddard Space Flight Center ...

In new research, University of California, Irvine astronomers describe how more than 200 known exoplanets are likely much larger than previously thought. It's a finding that could change which distant ...

We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

Alien Planet Lashed by Huge Flares From Its 'Angry Beast' Star By Will Dunham WASHINGTON (Reuters) -Scientists are tracking a ...

What they’re seeing is how far away the object is compared with other stars in the background, what its position is and ... such as a planet the size of Jupiter or Neptune. Fundamentally, this object ...

Neptune is the only planet in our solar system you can’t see with the naked eye—yet it’s one of the most active. With winds over 1,200 mph and dark storms the size of Earth, this gas giant ...