The clip is labelled as the STS-26 liftoff, the 1988 space shuttle Discovery mission that marked NASA returning to flight after a long pause in shuttle launches. Recordings of launch countdowns have long been shared by space fans, teachers and editors because the format is instantly recognisable, even without pictures. The steady count and engine roar have become a universal shorthand for a serious launch, which is why creators still borrow the audio for reveals, parodies, countdowns to events and science videos online today.