NASA's Mars missions have uncovered liquid water, potential biosignatures, and a hidden volcano on the Red Planet. The post ...

A person standing on the largest volcano in the solar system would never know it. Olympus Mons rises 70,000 feet over Mars on slopes too gentle to notice, and its summit pokes above most of the planet ...

Young Mars would have been a staggering place to explore. The Red Planet was covered in flowing rivers of both water and lava. At the time, a series of four volcanoes — Olympus Mons and the three ...

Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons. The Red Planet is a ...

NASA’s Mars Odyssey spacecraft was launched on April 7, 2001, and entered the orbit of Mars on October 24, 2001. During its active 23-year mission, it has changed the way we see the Red Planet but ...