A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

Mike Brown is convinced that beyond Neptune, at the far reaches of our solar system, there's an unseen giant planet. "This is the 5th largest planet in our solar system, lurking out there, waiting to ...

The James Webb Space Telescope has directly observed the key chemical of carbon dioxide in planets outside of our solar ...

New research suggests that the telescope could be poised to detect an Earth-sized planet orbiting Proxima Centauri, our ...