Some of the most promising places to look for extraterrestrials have remained, so far, mostly hidden from astronomers. Now a game-changing instrument called NIRPS (Near-Infrared Planet Searcher) is ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an orbit stretching 25,000 years and a size that may qualify it as a dwarf ...

SALT LAKE CITY--(BUSINESS WIRE)--Spirent, the leading global provider of test and assurance solutions, is pleased to announce SimXona, an industry-first Xona satellite constellation simulator, has ...

In our Solar System, the planetary orbits all have a similar orientation. Their orbital planes vary by a few degrees, but roughly the planets all orbit in the same direction. This invariable plane, as ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The planet, about ...

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 ...

PASADENA, Calif., July 1 -- The Cassini-Huygens spacecraft hurtled through the rings of Saturn and settled into planetary orbit late Wednesday, putting a pinpoint finish to a bold 2 billion-mile ...