NASA astronaut Andre Douglas pours a scoopful of geologic samples into a sample bag during a simulated moonwalk in the San Francisco Volcanic Field in Northern Arizona on May 17, 2024. Credit: NASA/Josh Valcarcel
NASA astronaut Andre Douglas pours a scoopful of geologic samples into a sample bag during a simulated moonwalk in the San Francisco Volcanic Field in Northern Arizona on May 17, 2024. Credit: NASA/Josh Valcarcel