Long theorized but never observed, the first known “planet with a death wish” is described by Ilin and her colleagues in a ...

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

Stars often whip their planets with solar winds and radiation, pull them ever closer with gravity and sear them with heat.

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

The planet, which astronomers believe is orbiting a young red dwarf star approximately 34 light years away, has been dubbed ...

Sedna will make its closest approach to the Sun in 2076, giving us a rare opportunity to visit the planetoid before it drifts ...