Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Learn more about WASP-121b, the exoplanet so hot it could vaporize iron.

Researchers for NASA have identified a new planet outside of our solar system, also known as an exoplanet.Officials said they ...

Scientists may have discovered a dwarf planet far beyond Neptune — an unearthing that may disprove a longstanding theory ...

THE James Webb Space Telescope has discovered its first-ever exoplanet – a distant world hidden by the glare of its nearest ...

What we already know, however, is that it has a much more extreme orbit than the two previous examples, 'Oumuamua and Borisov ...

"Astronomers may have just discovered the third interstellar object passing through the Solar System!" the agency's ...

Learn how the European Space Agency's spacecraft captured a completely new view of the Sun, thanks to its novel tilted orbit.

For the dwarf planet candidate, one trip around the sun takes over 24,000 years. Its orbit challenges a proposed path for a hypothetical Planet Nine.

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...

A possible new dwarf planet has been discovered at the edge of our solar system, so far-flung that it takes around 25,000 years to complete one orbit around the sun. The object, known as 2017 OF201, ...