E ESTA, HEIM?

Like a gigantic boat plying the heavens, the moon's shadow creates waves in Earth's atmosphere that travel at more than 200 mph, a new study reveals.
This effect was predicted back in the early 1970s, but researchers were only finally able to observe it during the total solar eclipse of July 22, 2009. The researchers discovered that acoustic waves, also known as sound waves, in Earth's upper atmosphere pile up along the leading and trailing edges of the moon's shadow as it moves across Earth, like the waves produced when a ship plows through water.

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