2019-6-13 21:22 |
Scientists just threw a monkey wrench in the search for intelligent extraterrestrial life by redefining what a “habitable planet” is. A team of researchers led by NASA astrobiologist Edward Schwieterman recently published a study indicating that the habitable zone (HZ) for life includes far fewer planetary systems than scientists thought.
According to the paper: Here we show that the HZ for complex aerobic life is likely limited relative to that for microbial life. We use a 1D radiative-convective climate and photochemical models to circumscribe a Habitable Zone for Complex Life (HZCL) based on known toxicity limits for a range of…
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