SETI: March 2022

In this second installment of SETI in 20xx, we very briefly and subjectively review developments in SETI in 2021.

An updated, binary-coded message has been developed for transmission to extraterrestrial intelligences in the Milky Way galaxy.

The intuition suggested by the Drake equation implies that technology should be less prevalent than biology in the galaxy.

The goal of the search for extraterrestrial intelligence (SETI) is the detection of non-human technosignatures, such as technology-produced emission in radio observations.

The Astro2020 report outlines numerous recommendations that could significantly advance technosignature science. Technosignatures refer to any observable manifestations of extraterrestrial technology, and the search for technosignatures is part of the continuum of the astrobiological search for biosignatures.