Discover the details of the SpaDeX mission, including its objectives, spacecraft, docking system, and the future impact on ...

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

The two Martian hemispheres are so different that planetary scientists have spent decades arguing about the cause with little ...

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

"What If is an epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a ...

NASA's IMAP mission will delve into the mysteries of the heliosphere, mapping its boundaries and studying solar wind ...

Mars is known as the 'Red Planet.' Learn about its reddish hue, caused by iron oxide, its position as the fourth planet from ...