Leonard David's INSIDE OUTER SPACE

What would it be like to live and work on Mars?

National Geographic Explorer and photographer Mackenzie Calle suited up to get a fascinating behind-the-scenes look at astronaut space training at the Mars Desert Research Station (MDRS) in Utah for the July cover story.

Go to this read at:

https://www.nationalgeographic.com/science/graphics/analog-astronaut-space-simulation-mars-moon