Stephen Hawking, one of the leading scientists, of our time turns 70 today.
He has always tackled the biggest questions. (Can you get much bigger than how the Universe was created?) He also has a sense of humour, dark as it may be.
Here is a short excerpt of an interview from 2008. The question, will humanity survive? (Don’t worry, he smiles at the end)
You can see the full interview here.