Self-destructive civilizations may doom our search for alien intelligence
A lack of signals from space may also be bad news for Earthlings
![satellite dishes of the allen telescope array](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/07/allen_telescope_array_seth-shostak-seti-institute.jpg?fit=1028%2C579&ssl=1)
The Allen Telescope Array, in Northern California, searches for signs of intelligent life elsewhere in the cosmos. A recent paper offers new estimates for the number of civilizations out there.
Seth Shostak/SETI Institute