Three billion years ago, you could have stood on Mars and watched a river spill into a sea. That picture is still speculative ...

A groundbreaking study has unveiled Antarctica's hidden, rugged topography beneath its ice sheet, revealing mountains, ...

Ancient shoreline features hint that water on Mars once formed a vast ocean.

Spacecraft orbiting the Red Planet have helped researchers map out an ancient coastline that surrounded a large ocean billions of years ago ...

Arcadia Planitia does not draw attention in the way Mars’s great canyons or volcanoes do. It sits quietly across the northern ...

ESA's first mission to another world, the Mars Express orbiter, began circling the Red Planet on June 2, 2003. Ever since, ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...

The Ring Nebula, also known as Messier 57, sits about 2,000 light-years from Earth. It is a planetary nebula—a misleading ...

Eversource stated on its website ahead of the storm the company is "prepared for hazardous snowfall and extreme cold." ...

Alan Higbie signed up for the Army to avoid the infantry; he ended up talking to a revolution. It all started with a crystal ...

Canadian Prime Minister Mark Carney says his country has no intention of pursuing a free trade deal with China. He was ...

Based on the number of days left in the Season 1 battle pass, Season 2 of Black Ops 7 and Warzone should arrive on or around ...