A small team led by Sihao Cheng, Martin A. and Helen Chooljian Member in the Institute for Advanced Study's School of Natural ...

Everything else — from the eight major planets to dwarf planets, comets ... in our solar system The solar system formed about 4.6 billion years ago from a giant rotating cloud of gas and ...

Recent observations by JWST of TRAPPIST-1 c ruled out a thick carbon dioxide atmosphere, indicating that the planet is not as ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

A planet circling at a sharp 90-degree angle to the orbits of its two host stars has now been confirmed. This discovery ...

Researchers say they found a curious dot on infrared images taken 23 years apart that seems to be moving in a manner consistent with a large, distant planet.