You and your crew are headed to the moon for a different type of rescue mission.
Between 1969 and 1972, NASA reports that humans have left about 500,000 pounds of garbage on the moon. NASA left it there to study it to see how the items handle space exposure and years of radiation, but the study is up, and we need to bring the items back for further investigation.
You and your crew will need to pick up leftover core samples that have expired and need to be disposed of on Earth.