It was recently discovered that research causes cancer in rats.

There ought to be something very special about the boundary conditions of the universe and what can be more special than that there is no boundary?

A zero-gravity flight is a first step toward space travel.

The real challenge is to work out what aliens might actually be like.

There are no black holes - in the sense of regimes from which light can't escape to infinity. There are however apparent horizons which persist for a period of time.

I don't think the human race will survive the next thousand years, unless we spread into space.

Jesus loves you, but everyone else thinks you're an ass.