 Buzz Lightyear's classic line "To Infinity and Beyond" has seen usage not only on themed merchandise, but among philosophers and mathematical theorists as well.In 2008, during STS-124 astronauts took an action figure of Buzz Lightyear into space on the "Discovery" Space Shuttle as part of an educational experience for students while stressing the catchphrase.The action figure was used for experiments in zero-g.