Here's a takeaway about extraterrestrial biosignatures — greyfaces can easily argue "Oh those compounds are naturally occuring" and put the kibosh on any
sensawunda. Cases in point — phosphenes on Venus and methane on Mars. Technosignatures, on the other hand, may be harder to refute. Madeleine Gregory outlines the four grants awarded by NASA to survey the sky for technosignatures, and why NASA is taking the concept and endeavor so seriously. (CS)
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from THE ANOMALIST https://bit.ly/3htMpjw
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