Why Is There No Sound in Outer Space?

Answer

The reason why there is not sound in outer space is because it is a vacuum. Sound travels faster in air therefore, the presence of a vacuum inhibits sound movement.
Q&A Related to "Why Is There No Sound in Outer Space"
In space, nobody can hear you scream, but it doesn't mean there's no sounds up there. Black holes generate sound. There's always one nearby.
http://wiki.answers.com/Q/Why_are_there_no_sounds_...
1. Choose a location outdoors where lights are minimal. If you live within city limits, you may have to go to a more rural area just to see the stars in the sky. 2. Use the binoculars
http://www.ehow.com/how_4515645_look-outer-space.h...
Since sound propagates like a wave, it needs a medium to travel through. Since space is a vacuum, no sound can be heard from space in the traditional sense. Though, we can convert
http://www.quora.com/Outer-Space-1/What-sounds-hav...
Sound waves can travel only through matter. Since there's almost no...
http://www.chacha.com/question/why-isn't-there-sou...
1 Additional Answer
Sound needs a medium in order to exist. However, there is no medium in space. Therefore, sound cannot exist in space. The movie scenes depicting noisy explosions in space are just not realistic. You can find more information here: http://students.ed.uiuc.edu/ljgriffi/project/grifunit8/NotesSound.htm
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