Question: How long will the human race last?

Alessandro Guazzi answered on 21 Mar 2013:

Hmm tricky question. Well, if the universe ends (and we still don’t know that), that would be a definite deadline. Another possibility is that some very large object will drop by in a couple of decades and smash into the earth and kill us all before we have time to react. The sun will start boiling the earth in about 1.1bn years, so unless we do something for that in time, we don’t really have a chance there either. But all these natural causes take time so I wouldn’t worry! You’ve got time to become a scientist! (unless America suddenly goes crazy and nukes the world).