Image courtesy of NRAO/AUI/NSF, CC BY 3.0
Joel Kontinen
Finding signs of other civilisations in the universe can be possible, if
you’re an evolutionist,
Based on our own technological
capabilities, we can extrapolate what signals alien technology might emit, and
search for those.
These signs are
called technosignatures, and our efforts in the search for extraterrestrial
intelligence (SETI) revolve around them, particularly in radio wavelengths.
Now, Margot and his team recently
conducted a search for technosignatures using the Green Bank Telescope, a
powerful radio telescope in West Virginia.
In April of 2018 and 2019, for a
total observing time of four hours, they homed in on 31 Sun-like stars around
the galactic plane, detecting a total of 26,631,913 candidate technosignatures.
A closer analysis of the data revealed that every single one of those candidate technosignatures was generated right here on Earth.
Technosignatures were created by humans on Earth.
Source:
Starr, Michelle. 2020. Astronomers detect millions of signals from an intelligent civilization: Us. Live Science 20 November