운석이 남긴 자국(아리조나/캘리포니아)

Barringer Meteor Crater

This crater was formed about 50,000 years ago

when an iron-rich meteoroid about 50 m (160 ft) across struck the ground near present-day Winslow, Arizona.

It impacted at a speed of about 25,000 mph (40,000 km/h).

The resulting blast was equivalent to the detonation of a 20-megaton hydrogen bomb,

and left a crater 1.2 km (3/4 mile) wide and 200 m (650 ft) deep.

This photograph was taken from 12,500 ft above sea level (about 7500 feet above the crater rim) 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  Ubehebe meteor crater, Death Valley, California