Science is beautiful when it makes simple explanations of phenomena or connections between different observations.

[In the Universe it may be that] Primitive life is very common and intelligent life is fairly rare. Some would say it has yet to occur on Earth.

For millions of years, mankind lived just like the animals. Then something happened which unleashed the power of our imagination. We learned to talk and we learned to listen.

I don't fear God- I fear His believers.

There should be a better way to start a day than waking up every morning.

It's the gravity that shapes the large scale structure of the universe, even though it is the weakest of four categories of forces

Exploration by real people inspires us.