Biosignatures & Paleobiology: February 2022

Detectability Of Chlorofluorocarbons In The Atmospheres Of Habitable M-dwarf Planets

The presence of chlorofluorocarbons (CFCs) in Earth's atmosphere is a direct result of technology. Ozone-depleting CFCs have been banned by most countries, but some CFCs have persistent in elevated concentrations due to their long stratospheric lifetimes.

Assessing Planetary Complexity and Potential Agnostic Biosignatures Using Epsilon Machines

We present a new approach to exoplanet characterisation using techniques from complexity science, with potential applications to biosignature detection.