Grab something off the shelf that's on the spaceship-an ashtray, it doesn't matter what. Because I can tell you, if they flew here from another galaxy, no matter what you've pulled off the shelf, it'll be unlike anything we have on Earth.
Neil deGrasse TysonGamma rays are the sort of radiation you should avoid. Want proof? Just remember how the comic strip character "The Hulk" became big, green, and ugly.
Neil deGrasse TysonResearch in education has shown that we remember field trips long into adulthood. I remember visiting the post office in second grade and looking at the sorting machine. I have vivid memories of that, when I don't even remember the name of the teacher who took me.
Neil deGrasse TysonIf all that you see, do, measure and discover is the will of a deity, then ideas can never be proven wrong, you have no predictive power, and you are at a loss to understand the principles behind most of the fundamental interconnections of nature.
Neil deGrasse Tyson