A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Certain extreme planets are called ultra-short period objects if they're very close to their stars and orbit them in mere hours, like K2-22b.

The Blue Ghost lunar mission has captured a gorgeous image of Earth as it ramps up its journey toward the moon.

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

Planet Labs Wednesday announced a new $230 million multi-year partnership extension with an unidentified Asian-Pacfic ...

Astronomers have found two planets around two separate stars that are succumbing to their stars' intense heat.

Four planets will be in the parade in January, while seven will align in February. Here's how to see the events.

An exoplanet is a planet outside our solar system that usually orbits a star in our galaxy. More than 7,000 have been found ...

Thirty years after the discovery of the first exoplanet, we detected more than 7000 of them in our Galaxy. But there are still billions more to be discovered! At the same time, exoplanetologists have ...

Early 2025 is a good time for skygazing and spotting up to seven planets in the night sky – if you have a little help.

The world's space agencies are keeping close watch on an asteroid heading our way, because there's currently a 1 in 83 chance ...