Is Humanity Unusual In The Cosmos?
Briefly

The universe is filled with alien worlds, which has been revealed by the exoplanet revolution. Upcoming methods will analyze the atmospheres of these planets for indirect signs of life, known as bio-signatures. This quest leads to inquiries about intelligent extraterrestrial civilizations, referred to as exo-civilizations. Traditionally, the Search for Extraterrestrial Intelligence (SETI) focused on searching for deliberate signals. However, emphasis is shifting towards discovering techno-signatures, the unintentional markers of civilization, by observing various wavelengths of light from distant exoplanets.
The exoplanet revolution has shown us that the universe is full of alien worlds, providing methods to detect atmospheres and reveal bio-signatures for life.
A shift in the search for extraterrestrial intelligence is now considering techno-signatures, which are unintentional markers indicating the presence of advanced civilizations.
Read at NPR.org
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