The findings provide strong evidence that four giant exoplanets 130 light-years from Earth formed much like Jupiter and ...

A new classification scheme may help us better understand planet formation — including the history of our own family of worlds.

GJ 1214 b, nicknamed Enaiposha, is a planet discovered 47 light-years away that has been reclassified from a mini-Neptune to ...

The James Webb Space Telescope captures the first direct images of carbon dioxide in a distant planetary system, HR 8799, ...

NASA’s James Webb Telescope captured direct images of gas giants in HR 8799, revealing their carbon dioxide-rich atmospheres.

Astronomers have identified a quartet of small rocky planets orbiting Barnard's star - one of our closest stellar neighbors - ...

The gas giants outside our solar system are not capable of hosting extraterrestrial life, but do offer clues in a lingering ...

Sub-Neptune planets that are smaller than Neptune in size are the most common type of planet known to exist in the Milky Way, but they are absent from the solar system. They have atmospheres that ...

For decades, astronomers have classified exoplanets into neat categories: rocky Earth-like planets, gas giants like Jupiter, ...