[MrWookie]

--Do you think time travel is possible, and if so will we ever learn how?

Nope.

--Do you think that the human race will ever populate Mars?

Tough to say. Certainly not in my lifetime. Eventually? Maybe. We'll probably take the moon first, though.

--Do you think that there is intelligent life elsewhere in the Universe?

Again tough to say. I think that even if there is, we'll probably never find it.