NASA
'I consider myself a foot soldier in the exploration of Mars'
![](https://www.bigissue.com/wp-content/uploads/2021/11/Larry-crumpler.jpg?w=768)
'I consider myself a foot soldier in the exploration of Mars'
Geologist Larry Crumpler on his new book, Missions to Mars: A New Era of Rover and Spacecraft Discovery on the Red Planet.