Alien organisms could hitch a ride on our spacecraft and contaminate Earth, scientists warn | Space

The risk of invading alien organisms is low, but we’re increasing the chances.

A concept image of alien microbes above Mars. (Image credit: Mark Garlick/Science Photo Library via Getty Images)

The growing demand for space exploration is increasing the chances of alien organisms invading Earth and of Earth-based organisms invading other planets, scientists have argued in a new paper.

The researchers point to humanity’s record of moving species to new environments on Earth, where those organisms can become invasive and harm the native species; they say such behavior suggests the same could happen with alien life from another planet contaminating Earth and vice versa, according to the paper, published Nov. 17 in the journal BioScience… Read more about this article in the link below…

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