We make a lot of noise here on Earth with our TV and radio broadcasts, and some of that sound escapes into space. But how far will our signals travel? Can Lucille Ball's laugh be heard across the universe?
Lucy's Laugh Enlivens the Solar System
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We make a lot of noise here on Earth with our TV and radio broadcasts, and some of that sound escapes into space. But how far will our signals travel? Can Lucille Ball's laugh be heard across the universe? |
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