New hope for life beyond earth

Abstract

In the early 1970’s, the research submarine, Alvin explored a system of volcanic vents on the floor of the Pacific Ocean and biologists were surprised to see a variety of organisms living near the vents in total darkness and at enormous pressures thereby hinting that life on Earth is not restricted to the near surface only. The discovery that microbes dwell deep in apparently solid rock gives credence to the theory that life can be transported between planets inside material blasted into space by big impacts.

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