Richard Strauss composed Also sprach Zarathustra in 1896, but the fanfare became globally recognisable when Stanley Kubrick used its opening in his 1968 film 2001: A Space Odyssey, accompanying the sunrise over Earth and the dawn of humanity. Since then the theme has become shorthand in film, television and online video for a grand, awe-inspiring moment, often played ironically over small or ordinary events. Its slow build and triumphant climax make it instantly understood even without dialogue, which is why editors still reach for it for space content, science explainers and dramatic reveals.