A U.S. scientist searching for a civilization across 7 Earth clones circling the red dwarf star TRAPPIST-1 says its own alien ...

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 ...

The dataset covers the period between September 2004 and December 2023 and will enable researchers to explore and model some ...

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

BS4 may be anywhere between 17 and 40 feet across, and will approach at about twice the distance between the Earth and moon.

Graphic visualisation of NASA's Solar Dynamics Observatory (SDO) shows a vast 500,000 mile-wide coronal hole in the sun's ...

The car, launched in 2018 on a SpaceX rocket’s upper stage, is one of many human-made objects in deep space that could ...

Stargazers can witness a rare 'planet parade' in January and February 2024, where six planets align prominently in the night ...

An asteroid that orbited near Earth for a few months as a mini-moon may be a chunk of the moon that was blasted off by an ...

Astronomers have retracted the discovery of a new asteroid after realizing the object was the remains of Elon Musk's Tesla ...

This 2022 satellite photo shows the summit of "one of the world's most dangerous volcanoes," Mount Vesuvius, peering up ...