Everything we do understand about the universe - the periodic table of elements, Einstein's laws, Newton's laws, all of chemistry, all of biology - that's 4 percent of the universe. We got to the moon on the 4 percent we do understand. We landed on Mars on the 4 percent we do understand. So the day we crack the nut of the rest of that 95 percent... Oh my gosh.
Neil deGrasse TysonUnlike what you may be told in other sectors of life, when observing the universe, size does matter, which often leads to polite โtelescope envyโ at gatherings of amateur astronomers.
Neil deGrasse TysonWe have people who believe they are scientifically literate but, in fact, are not.
Neil deGrasse TysonPeople say, oh we just need charismatic leaders to continue on to Mars. Now we've gone to the moon, of course Mars is next. No. Mars was never, of course, next. It is next if you think we went to the moon because we're explorers, but if you know we went to the moon because we were at war then we're never going to Mars. There's no military reason to do it, to justify the expenditure.
Neil deGrasse Tyson