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 ...

Why do all planets in our solar system orbit the Sun the same way? This documentary unravels the cosmic forces, from the solar system’s violent birth to the hidden laws of physics, that keep the ...

A new trans-Neptunian object, 2017 OF201, has been found with a vast orbit and potential dwarf planet size. The finding hints at more hidden bodies beyond Neptune. A research team led by Sihao Cheng a ...

Skywatchers who spotted the Jupiter-Venus conjunction on Aug. 12 are in for a dazzling display in the night sky through the end of August, with a "planet parade" building in the eastern sky, with ...

The James Webb Space Telescope has detected a possible gas giant the size of Saturn in the stellar system nearest our own ...

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar ...

Astronomers have directly spotted a rare young planet, WISPIT 2b, still forming within the gap of a dusty ringed disk around ...

Fresh results from near-infrared instruments foretell a bright future for finding life elsewhere in the Milky Way ...

NASA explores the Earth-like planet TRAPPIST-1e using the James Webb Space Telescope to search for signs of alien life.

Kevin Wagner first got a hint of this planet a few years ago, but new observations from the James Webb Space Telescope have ...