Description: Apollo astronauts John Young (left) and Neil Armstrong (center) with a Branch of Astrogeology trainer exploring the Bonito Lava Flow in 1964.

Prior to the first successful moon landing, scientists thought the rough lava-flow surface was likely how the surface of the moon would be.

Collection: Sunset Crater Volcano National Monument.

Author

National Park Service

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NeilArmstrong_JohnYoung_1964.jpg

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