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 ...

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

NASA’s Curiosity Mars rover has detected the largest organic (carbon-containing) molecules ever found on the red planet. The discovery is one of the most significant findings in the search for ...

(CNN) — The NASA Curiosity rover has detected the largest organic molecules found to date on Mars, opening a window into the red planet’s past. The newly detected compounds suggest complex ...

Two NASA rovers on Mars recently made two independent discoveries further indicating that ancient life may have once existed on the Red Planet. The U.S. space agency's Perseverance and Curiosity ...

NASA's Curiosity Mars rover has detected the largest organic (carbon-containing) molecules ever found on the red planet. The discovery is one of the most significant findings in the search for ...

Two NASA rovers on Mars recently made two independent discoveries further indicating that ancient life may have once existed on the Red Planet. The U.S. space agency's Perseverance and Curiosity ...