But the features do hint at how they formed on an ancient, wetter Mars.
One of those lakes was in Jezero Crater, in which Perseverance landed three years ago.
Those rock fossils are called stromatolites, and theystill form on Earth today.
An abrasion patch in Mars' Serpentine Rapids.Image: NASA/JPL-Caltech
Now, Perseverance has investigated another compelling target: the red rock with green spots.
Hardly a smoking-gun for alien life, the stone nevertheless provides a window into Marsironicironyiron-richpast.
The green spots in the rock are relatively common, according to theNASA release.
Given the possibilities, the green-splotched deposit warranted further investigation.
Hopefully there are more rocks bearing similar features in Perseverances near-future.
News from the future, delivered to your present.
Did Scientists Detect Life on Another Planet?
NASAs Mars Rover Captures a Giant Dust Devil Swallowing Its Friend
Mmmm, dusty.
