The solar system is composed of the sun, eight major planets, five dwarf planets, over a hundred moons, and countless comets ...

The James Webb Space Telescope (JWST) has notched another milestone, capturing a direct image of a distant, frigid planet in a solar system unlike our own, astronomers announced on June 10. The ...

WASHINGTON -- Astronomers have found the coldest spot in our solar system and it may be a little close for comfort. It's on our moon, right nearby. NASA's new Lunar Reconnaissance Orbiter is making ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...