Carolyn Porco is a remarkable person. She once worked on the images returned from the amazing Voyager space probe, and she is currently the team lead for the CICLOPS imaging camera on board Cassini, the phenomenal probe that has been orbiting Saturn since July 2004. The images returned by Cassini... well, you know what I mean.
I have had the pleasure of hearing Carolyn talk on numerous occasions, most recently at Space Fest (she too works in Boulder, and we sat next to each other on the plane over to Arizona and had a great conversation). After her talk there, and after the standing ovation died down, Buzz Aldrin leapt up and said we need a United Nations of the Cosmos, and Carolyn should be the Secretary General.
Talk about high praise.
Most people will never get a chance to hear Carolyn talk, and that's a pity. But now you can, because she spoke at TED, and they have the video of her talk online. I embedded the video below.