Phil Plait, the creator of Bad Astronomy, is an astronomer, lecturer, and author. After 10 years working on Hubble Space Telescope data and six more working on astronomy education, he struck out on his own as a writer.
His two books are Bad Astronomy: Misconceptions and Misuses Revealed, from Astrology to the Moon Landing "Hoax" and Death from the Skies! These Are the Ways the Universe Will End. He has also written dozens of magazine articles and 12 bazillion blog articles. He is a skeptic and fights the abuse of science, but his true love is praising the wonders of real science.