Clue Quote by Gordon Strachan

Of course, it's a dream to go to Mars. I want to find out whether there was life there or not. And if there…

— Valentina Tereshkova

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

I used to believe there were people on Mars, and of course now we know there aren't. Mars held particular interest. I was curious…

— Clyde Tombaugh

The question is not so much whether there is life on Mars as whether it will continue to be possible to live on Earth

— Immanuel Kant

Mathematically speaking, it seems impossible that there isn't life out our planet. If you flick on the news, it certainly seems like we have…

— Ryan Reynolds

When we get there, if we don't find any life on Mars, from that point on there will be life on Mars because we'll…

— Buzz Aldrin

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

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

— Albert Einstein

I do believe there's life other than on our planet.

— Forest Whitaker

If there is life, then I believe we should do nothing to disturb that life. Mars then, belongs to the Martians, even if they…

— Carl Sagan

This influential, yet controversial idea requires that the mixture of species on Earth at any moment acts as a collective organism that continuously (yet…

— Neil deGrasse Tyson

Mars is the only place in the solar system where it's possible for life to become multi-planetarian.

— Elon Musk