In potentially very big doings, two astrobiology papers suggest that some form of life is currently consuming gas and fuel on Saturn’s moon of Titan (The gas being hydrogen and fuel being acetylane, which would make sense for a methane-based life form.) “We suggested hydrogen consumption because it’s the obvious gas for life to consume on Titan, similar to the way we consume oxygen on Earth. If these signs do turn out to be a sign of life, it would be doubly exciting because it would represent a second form of life independent from water-based life on Earth.’” Yes, that would be exciting.
Update: NASA’s Chris McKay advises scientific caution. “This is a still a long way from ‘evidence of life’. However, it is extremely interesting.”