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K2-18b

K2-18b_is_really_far_away_(48767211447)
Photo credit: Spencer Thomas from Snohomish, United States, CC BY 2.0 <https://creativecommons.org/licenses/by/2.0>, via Wikimedia Commons.

To Do His Real Job, ET Doesn’t Need to Exist

The only possible conclusion to draw is this: What gives humans importance is not found in our genes. Read More ›
Exo-Planet_K2-18_b
Image: An artist imagines exoplanet K2-18b, by Arndt Stelter, CC BY-SA 4.0 <https://creativecommons.org/licenses/by-sa/4.0>, via Wikimedia Commons.

Fact Check: Did Scientists Really Detect Evidence of Life on Exoplanet K2-18b?

The molecule is dimethyl sulfide (DMS) or dimethyl disulfide (DMDS), and on Earth its sole known source is life (specifically, marine phytoplankton algae). Read More ›

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