The distances don’t account for the complete, total lack of evidence, though. Our civilization is detectable to dozens of light years at least, if you’re looking. And we are looking. So, the others… Where are they?
The distances don’t account for the complete, total lack of evidence, though. Our civilization is detectable to dozens of light years at least, if you’re looking. And we are looking. So, the others… Where are they?
There are habitable planets orbiting about one in five stars. So a few hundred habitable worlds in that range. Why do none of them transmit?