NASA's Perseverance rover has encountered another rock on Mars that has left scientists puzzled.

The molecules may be remnants of fatty acids, which form cell membranes in Earth’s organisms, though they might have formed ...

NASA's Curiosity rover made a compelling find on Mars ' irradiated surface.

NASA’s Curiosity rover has unearthed the largest organic molecules ever detected on Mars—possible fragments of fatty ...

Researchers caution that the molecules could be of abiotic or biological origin, and do not represent definitive proof of ...

The NASA rover "Curiosity" discovered what scientists say is the largest ever seen organic molecules on Mars, raising ...

Scientists at NASA, analyzing rock samples collected by the Curiosity rover, have discovered the largest organic molecules ...