Eventually, the Sun will swell to occupy the entire sky as its expansion subsumes the orbit of earth. Earth's surface temperature will rise until it matches the 3,000-degree rarified outer layers of the expanded Sun.... But not to worry. We will surely go extinct for some other reason long before this scenario unfolds.
Neil deGrasse TysonPractically every food you buy in a store for consumption by humans is genetically modified food. There are no wild, seedless watermelons. Thereโs no wild cows.
Neil deGrasse TysonThat the north star is the brightest in the night sky. I'd guess about 9 out of 10 people think this. But it does not require a grant from the National Science Foundation to learn the answer. The North Star is not even in the top 40 in the night sky. It's the 49th brightest star. Rather dull and boring by most measures.
Neil deGrasse Tyson