The molecules, while not a direct sign of life, still signal the existence of complex chemistry on the Red Planet.

Two NASA rovers on Mars recently made two independent discoveries further indicating that ancient life may have once existed ...

NASA’s Curiosity Mars rover has detected the largest organic (carbon-containing) molecules ever found on the red planet. The ...

But Curiosity wasn't the only one with a geological mystery. At the same time, roughly 2,300 miles away on the other side of ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The NASA Curiosity ...

Elon Musk announced SpaceX plans to launch a Starship carrying Optimus robots to Mars by the end of 2026, aiming to ...

Is there life on Mars? When curiosity breaks through a rock, it reveals this within. Sulfur crystals were discovered on the ...

The efforts made by humans to learn as much as possible about Mars are numerous, and NASA has an indispensable ally on the ...

Some of the unusual rocks carry stories about water on Mars. One has hints of long-gone microbes. All tell of a dynamic, complex planet.

A stunning discovery on Mars has revealed the longest organic molecules ever found on the planet—carbon chains that could ...

The NASA Curiosity rover has detected the largest organic molecules found to date on Mars, opening a window into the red ...