When I can tune into the "Mars Channel" on my Direct TV at any time, 24 hours a day and watch what is being discovered at that moment....
Then, we will be ready to send men to Mars.
Until then, I want my "Mars Channel" on TV.
Maybe. But we have the ability, so we should be working on it. The asteroid/comet impact risk is real and probably inevitable. The best way to insure mankind's survival is with self supporting colonies on other planets.
And in the end, our solar system will self-destruct.
In which case we'd better be further out than the solar system when the time comes.
Yeah, I know, I the timeframe I'm thinking of is in the loony longterm. :)