  Can information theory provide insights into whether exoplanets are
habitable? Here we apply information theory to a range of simulated exoplanet
transmission spectra as a diagnostic tool to search for potential signatures of
life on Earth-analog planets. We test the algorithms on three epochs of
evolution for Earth-like planets orbiting a range of host stars. The James Webb
Space Telescope and upcoming ground- and space-based missions promise to
achieve sufficient high-resolution data that information theory can be applied
to assess habitability. This approach provides a framework and a tool for
observers to assess whether an exoplanet shows signs of habitability.
