This chapter discusses the various ways in which scientists search for signs of life on exoplanets. They mention the use of light signatures, specifically biosignatures and techno signatures, to identify potential habitable worlds. They also touch on the idea of searching for pollution as a techno signature.
Is Earth going to evaporate? Neil deGrasse Tyson and comedian Chuck Nice learn about exoplanet discovery, planetary evaporation, biosignatures and technosignatures with astrophysicist Anjali Tripathi.
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Photo Credit: ESA/Hubble, CC BY 4.0, via Wikimedia Commons
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