A biosignature is any characteristic, element, molecule, substance or feature that serves as evidence for past or present life. It must be something that cannot be produced without life. Some examples ...

NASA scientists discover strong new evidence that Mars may have once supported life, much as Earth does today.

Mars just flashed its strongest hint of ancient life yet. So-called "leopard-spot” mineral fingerprints inside a river-carved ...

The Perseverance Mars rover collected the “Sapphire Canyon” rock samples in July 2024 from what’s thought to be an ancient ...

In the search for life beyond Earth, NASA's Perseverance Mars rover has discovered a rock sample that could preserve evidence of ancient microbial life ...

Scientists believe intriguing leopard spots on a rock sampled by the Perseverance rover on Mars last year may have ...

The discovery by the six-wheeled rover in Jezero Crater represents one of the best pieces of evidence to date about the ...

NASA’s Perseverance Mars rover collected a rock sample that NASA leaders say offers the best signs yet that ancient Mars ...

Has NASA's Perseverance rover at long last found evidence that life did indeed once exist on Mars? Here's what we know.

Its hard work has seemingly paid off. On Wednesday, NASA scientists dropped the bombshell: Cheyava Falls may in fact be the ...

The search for life on Mars reached its most promising breakthrough yet after NASA revealed new findings of possible ancient ...