Dr. Or M. Bialik on Nostr: What does it mean to "Set sensors to detect life signs"? How can we remotely detect ...

What does it mean to "Set sensors to detect life signs"? How can we remotely detect signs of #life in #space ? Lucky enough - someone recently wrote a manual outlining where, what, and how (lots of spectral analysis).
https://arxiv.org/abs/1705.05791
TL:DR - Right distance for liquid water, spectral evidence for abundance atmospheric oxidizers, water, #organic compounds; changes in compositions over the orbital cycle (seasons); chemical disequilibrium and to remember that life system evolves.