Yuri's Night is part of a worldwide celebration to commemorate and celebrate manned spaceflight and space exploration, with April 12 marking the first flight of Cosmonaut and Hero of the Soviet Union Yuri Alekseyevich Gagarin as well as the first launch of Space Shuttle Columbia. Live music, digital visuals, light sculptures and special guest astronomers from UT Dr. Jeff Silverman and Dr. Joel Green will pay tribute to humankind's eternal quest to boldly go where no man has gone before.