400-foot tsunamis may have shaped the surface of Mars
Four-hundred-foot tsunamis may have shaped the surface of Mars — and the deposits from the waves could offer up proof to researchers of whether or not the planet was once habitable, The Guardian reports. According to the study done by the Planetary Science Institute, the giant waves might have been formed after two large meteorites slammed into the planet — and the tsunamis would possibly have been powerful enough to shape the coast of Mars' ancient ocean.
The study was launched after scientists noticed discrepancies between the shoreline of Mars' long-gone ocean and the expected features of such a body of water. Scientists then examined two deposits, which they believe are the remnants of dual tsunamis that occurred several million years apart.
The first tsunami left boulder-rich deposits and gouged out channels as the water returned to the ocean afterward. Because these deposits apparently haven't been disturbed, they could contain information about the ocean and whether or not it could have supported life. The second tsunami occurred when the planet was much colder, and was more like an ice surge — when the water hit the land, it froze solid and didn't backwash into the ocean.
The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.
Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
There could be even more ancient tsunamis to be discovered. "Although we have only identified evidence for two tsunami events in our study area, other regions in the northern plains likely experienced similar tsunami-related coastal resurfacing, perhaps associated with other impacts, huge landslides or large Marsquakes," the study's authors say.
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
Jeva Lange was the executive editor at TheWeek.com. She formerly served as The Week's deputy editor and culture critic. She is also a contributor to Screen Slate, and her writing has appeared in The New York Daily News, The Awl, Vice, and Gothamist, among other publications. Jeva lives in New York City. Follow her on Twitter.
-
31 political cartoons for January 2026Cartoons Editorial cartoonists take on Donald Trump, ICE, the World Economic Forum in Davos, Greenland and more
-
Political cartoons for January 31Cartoons Saturday's political cartoons include congressional spin, Obamacare subsidies, and more
-
Syria’s Kurds: abandoned by their US allyTalking Point Ahmed al-Sharaa’s lightning offensive against Syrian Kurdistan belies his promise to respect the country’s ethnic minorities
-
EU and India clinch trade pact amid US tariff warSpeed Read The agreement will slash tariffs on most goods over the next decade
-
Israel retrieves final hostage’s body from GazaSpeed Read The 24-year-old police officer was killed during the initial Hamas attack
-
China’s Xi targets top general in growing purgeSpeed Read Zhang Youxia is being investigated over ‘grave violations’ of the law
-
Panama and Canada are negotiating over a crucial copper mineIn the Spotlight Panama is set to make a final decision on the mine this summer
-
Why Greenland’s natural resources are nearly impossible to mineThe Explainer The country’s natural landscape makes the task extremely difficult
-
Iran cuts internet as protests escalateSpeed Reada Government buildings across the country have been set on fire
-
US nabs ‘shadow’ tanker claimed by RussiaSpeed Read The ship was one of two vessels seized by the US military
-
Maduro pleads not guilty in first US court hearingSpeed Read Deposed Venezuelan leader Nicolás Maduro and his wife Cilia Flores pleaded not guilty to cocaine trafficking and narco-terrorism conspiracy
