The largest piece of Mars on Earth became the most valuable meteorite ever sold at auction at Sotheby’s annual ”Geek Week,” ...

Due to extreme temperatures and the dryness of Mars, it's thought to be impossible for liquid water to form on the planet's surface, a critical precondition for habitability. The only hope of finding ...

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 ...

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?

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.

The NASA Odyssey orbiter, which launched in 2001 from Cape Canaveral, snapped a 1st-ever image of a Mars volcano peeking ...

NASA Odyssey orbiter snapped a first-ever image of a Mars volcano peeking above clouds before dawn. It’s twice as tall as Earth’s largest volcano.