NASA's Curiosity rover has discovered carbonate-rich rocks on Mars, offering insights into the planet's past and possibly explaining why life has never been found there.

New discoveries by NASA's Curiosity Mars rover may not only explain why the Red Planet is a dry, lifeless desert, but that it ...

Curiosity finds strange boxwork ridges on Mars that hint at ancient underground water. Scientists are now drilling for answers.

A small "foreign object" A small, rectangular object spotted in Mars' Gale Crater in 2018 briefly gave NASA scientists a scare.

The more scientists study the Red Planet, the more they find unusual objects and patterns scattered across Mars' surface. As ...

A rocky Martian feature, which resembles a crumbling street curb, is part of a boxwork pattern that stretches for miles in a section of Gale Crater that NASA's Curiosity rover is now exploring ...

NASA's Curiosity rover explored Mars' Gale Crater, finding "boxwork" patterns and evidence of ancient waterways, providing clues about the red planet's watery past.

In Oregon's Crater Lake lies a tiny island that appears to take on some spooky qualities when the weather gets cloudy or foggy.

The new images by the Curiosity rover on Mars show "dramatic evidence" of ancient groundwater in crisscrossing low ridges, NASA said.