Re: Alien civilisations - less likely?
Fabulous. We live right next to a major tourist attraction and aren't even allowed to talk about it, let alone go there.
Theoretically - there should be an equasion for the possibility of Aliens not finding our system. I'd place the odds somewhere near zero.
I guess, the Earth kids still aren't ready for Mars, too depressing yknow..... that was the reason bion, but... things change.