Scientific paper arguing that the first life on Earth was delivered in a series of comet strikes.

jwz:

“It is now becoming amply clear that Earth-like planets and other life-friendly planetary bodies exist in their hundreds of billions and exchanges of material between them (meteorites, cometary bolides) must routinely occur.. One is thus forced in our view to conclude that the entire galaxy (and perhaps our local group of galaxies) constitutes a single connected biosphere.”

Insert “mind blown” emoji here.

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