NASA announces discovery of radical new life form - on Earth

In a press conference held today, scientists working with NASA announced the discovery of a new microorganism right here on Earth that employs a survival strategy never seen before in any other life form. Found in Northern California’s highly-saline Mono Lake, the GFAJ-1 bacteria exists in an environment that has very little phosphorous, an element that had previously been considered essential for all living things in order to build DNA. To cope with this problem, the bacteria is able to substitute highly-toxic arsenic for phosphorous, in its cell components. The fact that a microbe is able to survive in such a fashion opens up the possibilities for where life could exist on other planets, and will require a rethink on NASA’s part regarding its search for extraterrestrial life forms.

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