Editor’s note: A version of this story appeared in CNN’s Wonder Theory science newsletter. To get it in your inbox, sign up for free here. A mile and a half beneath the ocean’s surface, the ...

If you're near Kinnick Stadium on a Saturday when the Iowa Hawkeyes are competing in a football game, you will probably hear the chanting of "I-O-W-A" from nearly 70,000 ruckus fans. But what if ...

Carlsbad Caverns is a maze of underground caves born from an ancient tropical reef. The caverns house North America's largest cave chamber, "the Big Room," which boasts a floor area of 8.2 acres ...

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