Long ago Mars was an oasis of running water.Today the Martiansurfaceis a sterile,barren desert. Here on Earth, who knows what climactic knobs we unwittingly turn,which might one day render Earth as dry and lifeless as Mars. (From the cover of Old Poison by Joan Francis)
Neil deGrasse TysonThe universe is almost 14 billion years old, and, wow! Life had no problem starting here on Earth! I think it would be inexcusably egocentric of us to suggest that we're alone in the universe.
Neil deGrasse TysonEssentially every scientist, when posed with the question, "If you want to get science knowledge from Mars, do you want to send a geologist or do you want to send a robot?" Well, the real answer is, you can send 100 robots for the price of sending one geologist, so let's send 100 robots to 100 different locations, and then we would all benefit. So that's the answer you would get. And I agree with that answer.
Neil deGrasse TysonWhen I was a kid, I thought that if everyone looked up the way I did then everyone would want to study the universe just like me - how could they not? This naivetรฉ is what tells me that my interest was more a calling than a rational comparative assessment about what to be when I grew up.
Neil deGrasse TysonI have yet to see a successful prediction about the physical world that was inferred or extrapolated from the content of any religions document.
Neil deGrasse TysonI've said multiple times that the world's first trillionaire is going to be the person who exploits the resources of asteroids, the natural resources that are rare on earth and common on selected asteroids. So there are many different reasons you might want to go into space. You might want to spend your honeymoon on the far side of the moon.
Neil deGrasse Tyson