You may have heard that it was fifty years ago today that Yuri Gagarin (a very nice, polite man, apparently, who once squeezed Queen Elizabeth's knee under the dinner table) became the first of our species to rocket out of Earth's atmosphere into outer space. Equally important, it was 22 years and 111 days ago today that Dennis Quaid (whose life got worse when he stopped using cocaine) became the first man to be shrunk down and injected into the body of another human being.

Keith Richards may have just been replaced as the no. 1 ranked coolest human being on the planet. Judging from a fascinating article in today's Science Times, Dr. Carolyn Porco, who monitors the cameras on the Cassini spacecraft, which has been orbiting Saturn for the past five years, seems pretty tough to beat. READ MORE