HomeSpace NewsAlien life search could target city lights on exoplanets

Alien life search could target city lights on exoplanets

Scientists searching for signs of extraterrestrial technology should keep an eye out for city lights on exoplanets, a new study suggests.

Technosignatures are manifestations of technology that could be detected through astronomical means. To date, the search for extraterrestrial intelligence (SETI) has generally focused on radio signals, but shorter-wavelength optical light is a potential technosignature as well.

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