The Telegraph reports that NASA has discovered a dense atmosphere surrounding Titan, a moon of Saturn. “They suggest that life forms may have been breathing in the planet’s atmosphere and also feeding on its surface’s fuel.” Titan is too cold to support liquid water.
Chris McKay, an astrobiologist at Nasa Ames Research Centre, at Moffett Field, California who led the research, said: “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.”
Shhh, no one tell Stephen Hawking.