>> straughn: yes.big. >> whitaker: "big" and miraculous, with constant celestial regeneration. straughn calls this "the everything picture," because you can see old stars blowing up; and new stars forming. >> straughn: any time you see these sorts of dark cloudy regions, you can imagine that there's stars being born inside there. >> whitaker: where are the dying stars? >> straughn: and the dying stars, we think that this one could explode any day, literally. or it could be a thousand years from now. but near, near term in astronomers'-- >> whitaker: in cosmic time, any day. >> straughn: right. so big stars, when they die, they explode and send their contents into the surrounding universe. and these contents are what seed future stars and future planets and help to seed life, ultimately. the iron in your blood and the calcium in your bones was literally forged inside of a star that ended its life like this. >> whitaker: so we are all stardust. >> straughn: we literally are stardust. we are viscerally ma