Researchers examining Noachis Terra in Mars' southern highlands found evidence of extensive river networks – some hundreds of kilometers long.

Mariner 4, built by JPL in Pasadena, took the images on July 14, 1965. One of the mission's leaders reflects on decades of ...

A new map shows hidden Martian rivers stretching thousands of miles, offering fresh evidence of a warm, wet ancient Mars.

The model Kite’s team built was unique in that it captured evolution of the Martian landscape and climate over an extremely ...

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

In a dramatic new discovery, scientists have identified over 15,000 kilometers of ancient riverbeds on Mars, revealing that ...

Get ready for liftoff as we dive into areography - the study of Mars' geography! From towering volcanoes to massive canyons and mysterious polar ice caps, we’ll explore the Red Planet’s extreme ...

Why is Mars barren and uninhabitable, while life has always thrived here on our relatively similar planet Earth?

People from cultures across the world have been looking at Mars since ancient times. Because it appears reddish, it has often been called the red planet.

Mercury is notoriously difficult to see from Earth, thanks to its proximity to the Sun. But on July 4, Mercury reaches its ...

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

NASA's Curiosity rover has snapped its first images of web-like "boxwork" features on the surface of Mars. The zig-zagging rocks could provide clues about the Red Planet's watery past and whether ...