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Quick takeaways
- Sound cannot travel in space due to the absence of molecules necessary for sound waves to propagate, making Earth unique in its ability to support and perceive sound.
- The soundscape on different planets varies based on their atmospheric conditions, with Venus producing sounds akin to being underwater and Jupiter potentially creating thunderous sounds and echoes.
Deep dives
The Absence of Sound in Space
Sound cannot travel in space due to the absence of molecules necessary for sound waves to propagate. Without molecules to move, sound cannot be transmitted through the vacuum of space. This is why the famous line 'In space, no one can hear you scream' is accurate. Sound requires a physical medium to travel, such as air or water. However, in space or airless bodies like Mercury, there would be negligible sound, if any, apart from possible Mercury quakes.
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