One of the world's greatest scientists, Stephen Hawking, has passed away. We have lost a great man who helped advance our understanding of the universe. Though he had the great challenge of being confined to a wheelchair due to ALS, that did not stop Hawking from pushing his mind from pushing beyond what his condition had given his body.
One of the best references- and tributes to- I have seen of Hawking is in the Hyperion Cantos, with the Hawking Drive. Its a great way to tie in a famous scientist, and now for me, the Hyperion Cantos will be forever be a tribute to Hawking.
May the Force be with you, Stephen Hawking.