Mars is unique among the rocky planets, not only for its red color but also for its extreme geography. This distinctiveness ...

A new hypothesis by Michael Efroimsky of the U.S. Naval Observatory suggests that these distinct features might be due to a ...

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

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

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

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.

New research is revealing similarities between Earth's Grand Canyon and ones on the red planet. It's informing future Martian exploration and settlement plans.

Following the 7-planet alignment, Mars will be visible in the sky in March. Here's everything you need to know about this cosmic spectacle and how to watch it.

The color red and the planet Mars go together like Earth and its oceans or Saturn and its rings. However, our understanding of how the Red Planet got its signature hue might be wrong.

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

Scientists may have figured out how Mars hung onto its surface liquid water in its ancient history via alternating periods of hot and cold. But what would the impact have been on habitability?