Aliens Quote by Neil deGrasse Tyson

It's overwhelmingly likely that life exists on other planets.

— Paul Horowitz

I haven't a clue if there is life on other planets but I'd be charmed if we found a unicellular organism on Mars. It…

— Tommy Lee Jones

I believe that there may be intelligent life on other planets.

— Pat Buckley

If we do discover more than one type of life on Earth, we can be fairly certain that the universe is teeming with it,…

— Paul Davies

Intelligent life on other planets? I'm not even sure there is on earth!

— Albert Einstein

Theoretically, there are planets with an environment that can support life. As yet there is no evidence that there indeed is life on other…

— Rakesh Sharma

Searching for alternative life on Earth might seem misconceived, because there is excellent evidence that every kind of life so far studied evolved from…

— Paul Davies

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

— Seth Shostak

The discovery and investigation of life on other planets is likely to change many of our ideas about how life arose on the Earth…

— George Smoot

Once we get beyond Mars, which formed from the same stuff as Earth, the likelihood that life is similar to what we find on…

— John M. Grunsfeld

There is life outside of human beings on planet Earth.

— Da'Vine Joy Randolph

The question we ask is - if there is life on other planets, should we expect it to be based on the same molecules,…

— Dimitar Sasselov