Astronaut Drew Feustel captured from ISS Grand Canyon, U.S..

Credit: Drew Feustel, NASA

The Grand Canyon is a steep-sided canyon carved by the Colorado River in Arizona, United States. The Grand Canyon is 446km long, up to 29km wide and attains a depth of over 1,857m. Nearly 2 billion years of Earth’s geological history have been exposed as the Colorado River and its tributaries cut their channels through layer after layer of rock while the Colorado Plateau was uplifted. Several recent studies support the hypothesis that the Colorado River established its course through the area about 5 to 6 million years ago.

The local scenery on the ground is as follows.

Credit: Sanefumi Sammy Shoji

Reference: Drew Feustel’s Tweet
See earthview photo gallery: LiVEARTH