Mentioned by Trip101
10 Best Things To Do In Flagstaff At Night - Updated 2021
"Source: Photo by Wikimedia Commons user Kaldari used under PUBLIC DOMAIN. For an after dark, family fun activity, check out the Lowell Observatory. Since 1894, the Lowell Observatory has been the location of many discoveries, including first detecting the universe’s expanding nature, moon mapping for the Apollo program, the rings of Uranus, and of course, the discovery of Pluto."