The so-called Meteor Crater in Arizona previously held the record for largest impact crater less than 100,000 years old; it’s about 49,000 to 50,000 years old and measures 0.75 miles (1.2 km ...

Often overshadowed by Arizona’s famous site, the Odessa Meteor Crater is a massive impact zone with a story all its own. Formed by a space rock thousands of years ago, this West Texas landmark offers ...

Today, though, he's made the two-hour drive from Knoxville to show me around a terrestrial crater, the Middlesboro Impact Structure ... origin of Canyon Diablo in Arizona, a nearly mile-wide ...