Mars may have released sulfur gases that trapped heat, shaped the climate, and created conditions for ancient life.

Scientists believe intriguing leopard spots on a rock sampled by the Perseverance rover on Mars last year may have ...

Is it possible that there is (or at least was) life on Mars? Martians might not actually be little green men, but they just ...

Camille Flammarion's work imagined what might exist beyond Earth in the universe. Three Lions/Hulton Archive via Getty Images Living in today’s age of ambitious robotic exploration of Mars, with an ...

Roger Wiens has been a Mars explorer since he was 11 years old. He now leads the SuperCam instrument team on NASA’s Mars ...

Scientists think that these Mars rocks, called mudstones, dotted with mysterious markings could show that there were once ...

A new book explores how Americans came to believe in an advanced Martian civilization at the turn of the twentieth century.

This handout image taken by NASA's Mars rover Curiosity shows rippled patterns on the surface of rocks caused by the waves of a shallow lake billions of years ago ...

Scientists have discovered that Mars has an interior structure similar to Earth's. Results from NASA's InSight mission ...

Living in today’s age of ambitious robotic exploration of Mars, with an eventual human mission to the red planet likely to happen one day, it is hard to imagine a time when Mars was a mysterious and ...

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Matthew Shindell, Smithsonian Institution (THE CONVERSATION) Living in today’s age of ...