First Mars samples set to land on Earth in 2033

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. CNN — The first mission to return samples from another planet will touch down on Earth in 2033, according to NASA and European Space Agency officials. The Perseverance rover is currently collecting the samples on … Read more

Mars’ Valles Marineris, which is 20 times wider than the Grand Canyon, seen in stunning new images

The massive Valles Marineris canyon has been revealed in stunning new images taken by the European Space Agency’s Mars Express. At 2,485 miles long, over 124 miles wide and more than 4 miles deep, the Red Planet’s canyon makes America’s seem downright puny by comparison. Valles Marineris would span the distance from the northern tip … Read more

The Mars Express Delivers Truly Epic Views of The Solar System’s Biggest Canyon

The biggest known canyon in the Solar System is getting the star treatment in new images from the European Space Agency’s Mars Express orbiter. As it whooshed by in Martian orbit, the spacecraft captured a pair of gouges in the planet’s surface that make up part of the Valles Marineris, a system of canyons known … Read more