Season 1 · Episode 544
Ep. 544: Weird Issues: Biosignatures
Astronomy Cast · Astronomy Cast
October 28, 201929m 56s
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Show Notes
544: Weird Issues: Biosignatures Astronomy Cast 544: Weird Issues: Biosignatures by Fraser Cain & Dr. Pamela Gay Once again, another place where the Universe is going to make this difficult for us. Proving, once and for all that there's alien life on another world. It should be straightforward, look for biosignatures, but it looks like there are natural sources that could explain almost any chemical we could hope to search for.