A volcano is an opening in the Earth's crust that allows molten rock, gases, and debris to escape from below the surface. The ...

When we look at the solid ground beneath our feet, it's easy to assume Earth has always been this way. But our planet tells a story so extraordinary, so ...

Since the 1970s, planetary geologists have known that volcanic features cover large swaths of Mars. Early Mariner 9 images revealed massive shield volcanoes and lava plains on a scale unlike anything ...

A party hat-shaped object spotted on Mars is drawing renewed scrutiny, with some experts suggesting it could be evidence of ...

A rugged Martian landscape that resembles a vast spiderweb when seen from orbit is offering new insights into the planet’s ...

NASA's Curiosity Mars rover has spied a pitted rock face known as "Timboy Chaco" as it explores a region of the Red Planet called Mount Sharp.

NASA's Curiosity rover on Mars has captured an amazing panorama of Gale Crater's rim and more from Mt. Sharp. The rover ...

NASA’s Curiosity rover is investigating strange spiderweb-like ridges on Mars that may reveal a hidden chapter of the planet’s watery history. These “boxwork” formations likely formed when groundwater ...

These small, rounded nodules formed from minerals deposited as ancient groundwater slowly evaporated on Mars billions of years ago. NASA’s Curiosity rover photographed the pea-sized features on 21 ...

The web-like features are believed to be sculpted by ancient groundwater, offering new clues about the Red Planet's watery past. When you purchase through links on our site, we may earn an affiliate ...

It sounded like the former president was having an X-Files moment. Asked on a podcast whether aliens were real, Barack Obama replied with Fox Mulder certainty. "They're real, but I haven't seen them," ...

Nearly 3,000 athletes have faced the icy rinks and snowy ramps in Italy for the Milan Cortina Winter Olympics. The Olympic Games are host to rare athleticism and national pride. So before we bid the ...