Break out the astronaut ice cream, it's the end of an era. As of today, NASA's space shuttle program has come to end, with Atlantis returning to earth. Reuters reports that NASA workers lined the runway at the Kennedy Space Center before dawn greet the crew, and shuttle launch director Mike Leinbach says, "I saw grown men and grown women crying today... Human emotions came out the runway today. You couldn't suppress them."

While we await the arrival of NYC's own shuttle, click through for some of the shuttle program's historic moments, from tragic to comedic.