The official website of astrophysicist Professor Stephen Hawking. The Video tab lists the series Stephen Hawking’s Grand Designs, Into the Universe with Stephen Hawking and Stephen Hawking’s Universe with links to purchase at amazon.com. There are also links to interviews and lectures hosted on YouTube; these include Hawking’s appearance on The Simpsons, the 50th NASA Anniversary Lecture and a lecture delivered at the White House in 1998 introduced by Hillary Clinton. The site also provides transcripts of some of Hawking’s lectures and a list of his publications.