Evidence Shouldn't Be Optional

NASA experiment suggests need to dig deep for evidence of life on Mars

Biofinder advances detection of extraterrestrial life: If the Biofinder were mounted on a rover on Mars or another planet, it would be able to rapidly scan large areas quickly to detect evidence of past life

NASA's Curiosity Rover Rolls Past Evidence of Ancient Water | New images of rock formations offer clues to what Mars was like billions of years ago.