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MP3 다운로드 
Place it at the very start of a space-history edit to set the scene, then follow it with the Dun Dun Dun Sound when the story reaches its tensest reveal, and finish with a quiet bell ding for a fact reveal.
이 사운드에 대해
This short clip repeats the sharp electronic beep transmitted by Sputnik 1, lasting just over four seconds with a steady, pulsing rhythm. It feels cold, distant and quietly tense, like a signal arriving from far above Earth. The sound comes from the first artificial satellite, launched by the Soviet Union in 1957, whose radio pulses announced the start of the space age.
