In politics, the near future is likely to be closer to George Orwell’s 1984 than to Brave New World.

Aldous Huxley

One in 200 stars has habitable Earth-like planets surrounding it - in the galaxy, half a billion stars have Earth-like planets going around them - that's huge, half a billion. So when we look at the night sky, it makes sense that someone is looking back at us.

Michio Kaku