If you could travel to an exact moment in space and time, where and when would you go and why?

I would go to the planet 'Galifrey' and witness the birth of Dr Who.

I would go back in time to a weekend with my Gran when I was a girl. She would run a bubble bath for me, lay out my gown and place the sweet powder on the counter. She would read to me the story of Cory and how he finds the lost teddy bear. We would pray and I would sleep like a baby. The next day we would go get her hair done, she would buy me a coke, we would take her mom to the store, go eat lunch and have strawberry pie for desert. Most of all, I would feel loved again.

I would go and study the eagle nebula, its very interesting

We discussed this at work over lunch one day last year. Our top three, all on Earth:

1. Go back to the Mesozoic and get dinosaur tissue samples, to see how their genetics and biochemistry relate to modern animals.

2. Same, but go back to the Cambrian. There was an enormous diversity of biology, like nature was trying lots of different things before settling on what we have now.

3. Go back to just before the last Ice Age to see how humans really did migrate out of Africa, and how they colonized the Americas. Learn more about their cultures, beliefs and language.

If you could pull any of these off it would be a cinch for a Nobel Prize.

My birthday in 1976. If you saw my girlfriend at the time, you would'nt hve to ask why...

I would go to the time where the Big Bang has yet to happen and see what the universe is like before the Big Bang and where the energy from the Big Bang came from.

Then i would take a Gun with me and shoot the Big ball of energy the big bang is and set it off whilst taping it all down on video and go back in time and told my friends i caused the Big Bang. (: