l. wilson and brian greene and michio kaku. but given the size of that science frontier, we need many more. and so i'm disappointed that i'm sitting there alone with that kind of distinction. >> hinojosa: so when i was growing up, the most famous scientist was carl sagan. >> yeah. oh, yeah. >> hinojosa: and you actually got a chance to meet him, hang out with him, exchange ideas with him. >> totally. >> hinojosa: you we extraordinarily inspired by him. >> yeah, i already knew i wanted to be a scientist, so that's not the link that mattered there. there i was in high school, already knowing that when i grew up i wanted to be an astrophysicist, something i've known since age 11. and my application to cornell university, it was, like, dripping with the universe, because there's all... i had a telescope, i was in the club, i... you know. and so cornell accepted me, but then they want you to come if they accept you, right? but i hadn't decided yet. and they, little did i know, forwarded my application to carl sagan's office, and car