In Seager’s view, there is at least “a remote shot” that we’ll detect a biosignature within the next ten years. Inferring some kind of life on a distant world isn’t like being handed the password to the Encyclopedia Galactica, but it would tell us that life is not confined to our own world.
How striking to think that the first discovery of life elsewhere may come from the light of a distant exoplanet rather than from an object in our own Solar System! But ponder: Seager is talking about a possible biosignature detection within a mere ten years. Are we likely to have unambiguous evidence of life on Mars, Europa or any other nearby object as soon as that?
This is exciting stuff. To think that we could be just a decade away from seeing our first sign of distant life in the universe!