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

NASA telescopes in Chile have discovered a comet from interstellar space, making its closest approach in October.

A new large object, 2017 OF201, was discovered far beyond Neptune. Its orbit is extremely elongated and takes 25,000 years to complete. 2017 OF201's size challenges ideas about a ninth planet in ...

A possible cousin of Pluto seems to be circling the far reaches of the solar system. The dwarf planet candidate 2017 OF201 travels in a superwide orbit, with the sun relatively near one end of its ...

Strongest hints yet of biological activity outside the solar system Date: April 16, 2025 Source: University of Cambridge Summary: Astronomers have detected the most promising signs yet of a ...

A new Tatooine-like planet outside the solar system may orbit two failed stars, scientists reported Wednesday. The exoplanet, which is about 120 light years away, appears to take an unusual path ...

If there were one, that Planet Nine would "nudge the closest part of 2017 OF201's trajectory inward until Neptune flung it out of the solar system." Because 2017 OF201 is there, that could be an ...

There’s a new object in the distant reaches of our solar system, and it might just offer clues to a long-standing cosmic mystery. Astronomers have cataloged a frozen minor planet called 2017 ...

A small, inconspicuous meteorite may be about to change our understanding of how and when our solar system formed. Tiny shavings from the meteorite Northwest Africa 12264 are challenging the long-held ...