Thinking about space for too long can be scary and overwhelming. Are we alone? Will we ever be able to live on another planet? Will black holes destroy the universe one day? What should you do if you ever encounter an alien? Don’t worry, our curious science producer will do all the excessive thinking for you, and teach you a thing or two in the process. With the help of experts, our producer will deep dive into all the interesting things that happen, have happened, and will happen in space.

A NASA rover exploring the foothills of a Martian mountain has found rippled rocks, offering scientists the clearest evidence yet of ancient water waves on the Red Planet.

Curiosity, a car-size robot that has been rumbling over Mars for a decade, took photos of the peculiar geology in mid-December(Opens in a new tab)(opens in a new tab). The rocks are like the undulating patterns one might find when the tide reels the ocean back from a beach, revealing wobbly tracks on the temporarily exposed sand.

Mission scientists say waves of water lapping on the surface of a shallow lake created these grooves, perhaps billions of years ago. The movement on top churned up sediment from the bottom, they suspect, forming the combed texture.

Elisha Sauers

Elisha Sauers is the space and future tech reporter for Mashable, interested in asteroids, astronauts, and astro nuts. In over 15 years of reporting, she's covered a variety of topics, including health, business, and government, with a penchant for FOIA and other public records requests. She previously worked for The Virginian-Pilot in Norfolk, Virginia, and The Capital in Annapolis, Maryland, now known as The Capital-Gazette. She's won numerous state awards for beat reporting and national recognition(opens in a new tab) for narrative storytelling. Send space tips and story ideas to [email protected](opens in a new tab) or text 443-684-2489. Follow her on Twitter at @elishasauers(opens in a new tab).