Description: Operation Moonwatch created an international network of dedicated and enthusiastic volunteer sky-watchers of both genders and from every walk-of-life. These citizen-scientists joined professional astronomers to track and report on satellites travelling through the night sky. Food and location played a role in keeping volunteers engaged with Operation Moonwatch.
Description: In the process of scanning glass plate negatives, how do we determine what each image is when it comes with so little information attached?