June 12th, 2006

On Mars, No One Can Hear You Scream ScienceNOW

Sound dies quickly in the cold, thin air of Mars. Researchers have modeled a sound wave traveling through the Martian atmosphere and report that it doesn’t go far–even a lawn mower’s roar dies after a hundred meters or so. The model presents an unusually detailed picture of how sound travels in an alien atmosphere and hints at what it would take to communicate on the Red Planet.

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