desert varnish on rocks broken up by Perseverance
Evidence of a microbial community associated with rock varnish at Yungay, Atacama Desert, Chile https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2007JG000677
Life on the Edge: Microbes in Rock Varnish https://www.osti.gov/biblio/1570605
https://en.m.wikipedia.org/wiki/Cyanobacteria
















