This is because these objects formed “billions of years ago when liquid water still existed on the Red Planet. Water carried ...

To be sure, Mars likely hosted some kind of water on the surface between 3.7 billion and 4.1 billion years ago, when Earth and the rest of the solar system were still young.

He also wrote "Mars: Our Future on the Red Planet" released in 2016 by National Geographic. Leonard has served as a correspondent for SpaceNews, Scientific American and Aerospace America for the AIAA.

On March 18, 2024, NASA’s Perseverance rover, which usually examines rocks on Mars’ surface, tilted its camera upward. The planet’s entire sky glowed a soft green, and the rover snapped an ...