Astronomers have found new evidence, revealing the existence of an unseen and mysterious planet that could be hidden in the solar system. The new research study which is published in the Monthly ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Astronomer Scott Sheppard discovered 2025 SC79, marked here in two images showing its motion ...

Astronomers believe the Sun may have formed alongside a twin star about 4.6 billion years ago in the same stellar nursery — a companion that later drifted into the Milky Way’s outer regions. Trump ...

Millions of asteroids are currently zipping through our solar system. These rocky remnants of the early solar system receive extra attention when their itinerary brings them too close to Earth—which, ...