The James Webb telescope has made another stunning discovery -- this time of a massive planet that could potentially sustain ...

EXCLUSIVE: Scientists say the discovery of a Jupiter-like planet promises to further understanding of planetary systems.

Astronomers have spotted an alien planet orbiting so closely to its home star, the planet's magnetic field is triggering ...

A new investigation into old Kepler data has revealed that a planetary system once thought to house zero planets actually has ...

New research shows there is at least a 40% chance of the existence of Planet Nine, but scientists are still looking for definitive proof.

Some planets take the expression "you're your own worst enemy" to the extreme. At least, that's what astronomers found when ...

The search for life beyond Earth is a holy grail quest for many experts, but finding where to look is a core issue.

In a grand finale of planet-spotting prowess, NASA’s Kepler spacecraft has tracked down 219 new planets outside our solar system — including 10 that could have the right qualifications for ...

And in so doing, the technique found two new planets, one orbiting a star known as Kepler-80 and another orbiting Kepler-90, that star's eighth known world. It is the only solar system other than ...

The explosion of new planet discoveries is mostly due to Kepler, which identified these eight. But it takes more than spotting them to be sure they're planets. From there, ...

Astronomers have found a new planet that's mostly made of iron NASA's TESS telescope finds a small, iron-rich planet which could help explain the origins of Mercury, the innermost planet in our ...