There is so much left of it to explore.

As we get older, things seem less important.

You dig deeper and it gets more and more complicated, and you get confused, and it's tricky and it's hard, but... It is beautiful.

Every carbon atom in every living thing on the planet was produced in the heart of a dying star.

Look at that! If you ever needed convincing that we live in the solar system, that we are on a ball of rock, orbiting around the Sun with other balls of rock, then look at that! That's the solar system coming down and grabbing you by the throat.

Science is too important not to be a part of popular culture.

When we look out into space, we are looking into our own origins, because we are truly children of the stars.