A planet 140 light-years from Earth is rapidly coming apart due to its close proximity to its star. The roasting planet is ...

Webb has two decades ahead of it, but it's already captured some stunning images. Here are 35 of our favorites.

A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is ...

When a planet's orbit brings it between Earth and a distant star, it's more than just a cosmic game of hide and seek. It's an ...

The James Webb Space Telescope has pointed its infrared optics at the 'Crystal Ball Nebula' NGC 1514, a planetary nebula ...

U.S. team of researchers detected signs of two chemicals in the planet's atmosphere long considered to be "biosignatures" ...

The Webb telescope — a scientific collaboration between NASA, ESA, and the Canadian Space Agency — is designed to peer into ...

Get closer to our solar companions with the best telescopes for seeing planets, just in time for April's full moon and a stunning view of Mercury. Want to focus your stargazing on our cosmic ...

By Will Dunham WASHINGTON (Reuters) -Astronomers have spotted a small rocky planet that orbits perilously close to its host ...

Astronomers using NASA’s James Webb Space Telescope just gave a cosmic mystery a serious plot twist. The event in question—a ...

The discovery was made on a massive exoplanet known as K2-18b that for years has captivated scientists searching for life ...