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

Nasa rover makes discovery that hints at past life on Mars - ‘This very well could be the clearest sign of life that we’ve ...

NASA Secretary Sean Duffy reveals they may have found evidence of ancient life on Mars through what they believe are signs of ...

Was there ever life on Mars? Planetary scientists think there could have been but there hasn’t been any direct evidence.

Viking consisted of two twin orbiters and landers, with experimental chambers in the landers to conduct three biology experiments.