NASA's James Webb Space Telescope has been used to shed new light on the exoplanet, GJ 1214 b, which is more than eight times ...

NASA has been monitoring a never-before-seen planet in its solar system, which is eight times the size of Earth.

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit before shoving four of the solar system's planets onto a different course.

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

Temperamental' stars that brighten and dim over a matter of hours or days may be distorting our view of thousands of distant ...