rare earth hypothesis

Questions

What does rare earth hypothesis mean?

The hypothesis that the evolution of life required an improbable combination of astrophysical and geological events and circumstances, and for this reason complex extraterrestrial life is a very improbable phenomenon and likely to be extremely rare.

How to pronounce rare earth hypothesis

1. Open the pronunciation page — Open the Speakur entry for “rare earth hypothesis”.
2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
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4. Repeat and practice — Say “rare earth hypothesis” aloud, matching stress and vowels until it feels natural.