Humans are naturally nosy. We’re always asking, “Are we alone in the universe?” And if there are aliens out there, could we find them by sniffing out their industrial pollution? Spoiler alert: Not likely — unless E.T. has a factory ...
Humans are naturally nosy. We’re always asking, “Are we alone in the universe?” And if there are aliens out there, could we find them by sniffing out their industrial pollution? Spoiler alert: Not likely — unless E.T. has a factory ...