https://pdxscholar.library.pdx.edu/phy_fac/450/
"Extant Life Detection Using Label-Free Video Microscopy in Analog Aqua" by Carl D. Snyder, Manuel...
The ability of microbial active motion, morphology, and optical properties to serve as biosignatures was investigated by in situ video microscopy in a wide...
carl d snyderfree videoaqua byextantlife