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 ...

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

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.

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 ...

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 ...

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

The Perseverance rover has found some intriguing samples on the red planet. Here's what they might reveal about the origins ...

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

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