The 73rd World Science Fiction Convention (Worldcon), also known as Sasquan, was held on 19–23 August 2015 at the Spokane Convention Center in Spokane, Washington, United States.

Kjell Norwood Lindgren is an American astronaut who was selected in June 2009 as a member of the NASA Astronaut Group 20. He launched to the International Space Station (ISS) as part of Expedition 44/45 on July 22, 2015.