Debunked Fact Physics Astronomy
MOSTLY FALSE Outdated, part true

Space Is Completely Silent

Space has sound waves in plasma; silence is accurate in vacuum

✗ The myth everyone repeats

Space is completely and absolutely silent because there is no sound in the vacuum.

✓ What is actually true

The vacuum of space has no atmosphere to carry sound waves, so it is indeed silent. However, this statement oversimplifies: space isn't a perfect vacuum but contains plasma and gas, especially near stars and galaxies. These media can carry waves called plasma waves or Alfven waves. Additionally, sophisticated instruments detect radio waves and other electromagnetic radiation. The traditional statement 'space is silent' is accurate for conventional sound but misleading about space's actual character.

Believed Since 1960
Year Revised 2010
Why Changed Oversimplification
Confidence Revised
Region Worldwide

Reception

6/10
6/10
The receipts 2 sources
  1. NASA: Space and SoundPRIMARY
  2. Physics Classroom: Wave PropagationREFERENCE

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