Just last week, NASA's Perseverance rover dropped some major news from Mars that has everyone talking. A tiny rock sample, dramatically named "Sapphire Canyon," is showing tantalizing hints of what scientists call biosignatures . In plain English? Potential signs that ancient, alien life might have once existed on the Red Planet.

Perseverance snagged this promising sample from a rock in Jezero Crater, which happens to be a dried-up ancient riverbed. The fact that this area was once flush with water is a huge deal, since that's a key ingredient for life as we know it. While this isn't a smoking gun for little green men, it's a massive clue.

As one NASA scientist put it, finding proof of past life would seriously "increase the possibility that some form of life has survived" undergr

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