Aliens Quote by Neil deGrasse Tyson

The Earth is a unique system in the universe, the only planet we know of that's hospitable for humankind.

— Sylvia Earle

If this is the only planet on which not only life, but intelligent life, has arisen, that would be very unusual.

— Seth Shostak

I don't think we are the only planet that has life.

— Sandra Bullock

The universe is very big - there's about 100,000 million galaxies in the universe, so that means an awful lot of stars. And some…

— Jocelyn Bell Burnell

I think it'd be pretty unrealistic to think we're the only planet in the world with thinking beings. It's kind of a strange conceit.…

— Max Minghella

When I was a little kid, we only knew about our nine planets. Since then, we've downgraded Pluto but have discovered that other solar…

— Buzz Aldrin

Data from orbiting telescopes like NASA's Kepler Mission hint that the tally of habitable planets in our galaxy is many billion. If E.T.'s not…

— Seth Shostak

That is a big question we all have: are we alone in the universe? And exoplanets confirm the suspicion that planets are not rare.

— Neil deGrasse Tyson

We don't know why we are here and . . . our role in the universe, and the thought of an infinite universe. It's…

— Joel Kinnaman

There's life all over this universe, but the only life in the solar system is on earth, and in the whole universe we are…

— George Wald

Given the millions of billions of Earth-like planets, life elsewhere in the Universe without a doubt, does exist. In the vastness of the Universe…

— Albert Einstein

We don't know why we are here and the context of our role in the universe, and the thought of an infinite universe. It's…

— Joel Kinnaman