We have written the evidence of our existence onto the surface of our planet. Our civilisation has become a beacon, that identifies our planet as home to life.

We are the cosmos made conscious and life is the means by which the universe understands itself.

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

For the first time, we saw our world, not as a solid, immovable, kind of indestructible place, but as a very small, fragile-looking world just hanging against the blackness of space.

(On the energy radiated by the Sun) It's four hundred million million million million watts. That is a million times the power consumption of the United States every year, radiated in one second, and we worked that out by using some water, a thermometer, a tin, and an umbrella. And that's why I love physics.

No one gets teased for being a geek anymore- science is the new rock n roll

What scientists are attached to is journeys into the unknown and discovering things that are completely unexpected and baffling and surprising.