Located less than 20 light years away, HD 20794d could potentially be one of the most Earth-like planets found so far, ...

The fact that the cold, dry Mars of today had flowing rivers and lakes several billion years ago has puzzled scientists for ...

Elon Musk has reacted to a rather eerie prediction that dates back over 70 years. The tech billionaire and CEO of aerospace ...

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

The researchers included the father-son team of Mark Thiemens, UC San Diego Distinguished Professor of Chemistry and ...

Experts told Newsweek about the difficulties of reaching Mars as the United States faces complex challenges in space policy.

Planetary defense is a global imperative, of course, but for the time being, NASA — and, by extension, the United States — is ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but get a telescope and you can spot Neptune and Uranus.

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

Mars' southern hemisphere absorbs a lot of the sun's energy during the Red Planet's spring, and that may be causing Mars' ...

The “asteroid” wasn’t a space rock after all. It was a cherry-red Tesla Roadster that Elon Musk launched into space to much ...