The Rare Earth Hypothesis is a perspective that posits the emergence of complex, multicellular life on Earth required a highly improbable combination of astrophysical and geological events and circumstances. This hypothesis suggests that while simple, microbial life might be relatively common in the Universe, complex life forms are exceedingly rare. This article explores the foundations of the Rare Earth Hypothesis, its key arguments, how it fits into the larger conversation about extraterrestrial life, and the implications and criticisms it faces.
Read More The Rare Earth Hypothesis: Assessing the Scarcity of Complex Life in the Universe