The mini-Neptune survived rather than get bundled out of the way by the marauding hot Jupiter because the two metaphorically ...

A new study suggests that a tiny, icy world beyond Pluto harbors a thin, delicate atmosphere that may have been created by ...

A scorching, airless world just 48 light-years away is offering scientists a rare glimpse into the geology of distant planets ...

The galaxy’s most common stars rarely host sub-Neptune planets, revealing a new pattern in how close-in worlds form.

Astronomers have detected the chemical fingerprint of a frozen, water-rich planetary fragment being devoured by a white dwarf star, offering the clearest evidence yet that icy, life-delivering objects ...

The James Webb Space Telescope's (JWST) exoplanet subject, LHS 3844 b, is a so-called "super-Earth" about 30% larger than our ...

Dubai: A rare astronomical event is set to unfold on Monday evening, as the dwarf planet Haumea passes directly in front of a ...

Is Pluto a planet? At a U.S. Senate committee hearing this week, NASA's chief shared his thoughts on the decades-long debate.

About 20 years ago, leading astronomers decided that Pluto was too small to be a planet, undoubtedly giving it a Napoleonic ...

New research suggests that billions of years ago, the dwarf planet Ceres may have had water, organic molecules, and chemical energy — the key ingredients for life. NASA’s Dawn mission data reveals ...