Stephen Hawking

Imaginary time is a new dimension, at right angles to ordinary, real time.

I believe alien life is quite common in the universe, although intelligent life is less so. Some say it has yet to appear on planet Earth.

One can't predict the weather more than a few days in advance.

I'm interested in the psychological exploration of human nature, and it just happens to come in the form of film-making.

At last we've seen the first installment of Joss Whedon's new web series, 'Dr. Horrible's Sing-Along Blog,' and it's sweeter than we'd ever imagined.

We should remember that there are nations which meet more than 30 to 60% of their power requirements through the nuclear power system.