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Nautilus

<p>Caleb Scharf is an astrobiologist, author, and recipient of the 2022 Carl Sagan Medal. His latest book is <i>The Giant Leap: Why Space is the Next Frontier in the Evolution of Life.</i></p>


extraterrestrial life

Don’t Write Off ET Quite Yet

The Best Way Yet to Talk to Aliens (If They’re Out There)

Carbon Fated: We’re Built This Way for a Reason

The Fun-House Mirror Earths