When the Apollo 11 astronauts left the surface of the Moon on July 21, 1969, they brought home samples of solar wind particles, lunar rocks and dirt, and a big helping of perspective.
Westerly winds from the Atlantic Ocean carry moisture into the region, but the Atlas Mountains act as a weather barrier between coastal grasslands and wetlands and the Sahara Desert.
The Grand Canyon is one of the best known natural wonders on Earth, but astronauts see very different patterns compared with the iconic ground-based views.