Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an ...

A new trans-Neptunian object, 2017 OF201, has been found with a vast orbit and potential dwarf planet size. The finding hints ...

Sky This Week is brought to you in part by Celestron. Friday, September 12Mars passes 2° north of 1st-magnitude Spica in Virgo at 4 A.M. EDT, though neither has risen at this time (they rise in ...

"The planet gets in the way from the point of view of any one spacecraft, so we had to spread them around the planet to look ...

Astronomers have discovered a brand new type of planet outside our solar system that, even in its infancy, is already bigger than Jupiter.

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

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

The final 'planet parade' of the year will feature six planets aligning in the pre-dawn sky on Sunday, August 10. A planetary alignment, casually called a 'planet parade,' occurs when several planets ...

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 ...

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

Scientists are steadily ruling out habitable conditions on the seven planets of the star Trappist-1. On one of the worlds, a ...