Free Astronomy Magazine July-August 2019

18 ASTRONAUTICS A POLLO 16 − Panoramic view of Plum Crater. A high-resolution version of this image is available at https://www.astropublishing.com/moonscapes/A16_Plum_Crater_panorama.pdf [NASA, Project Apollo Archive; image merging by Astro Publishing] A POLLO 16 − A well-investi- gated boulder known as ‘House Rock.’ [NASA, Project Apollo Archive]