1. Comet Hyakutake photographed over the Yerkes Observatory 90-foot diameter dome in March 1996 Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: March 1996 Institution: Anna Maria College
2. Boston University observatory, Boston Creator: Grant, Spencer, 1944- Format: Photographs Collection: Spencer Grant Collection Date: 1978 Institution: Boston Public Library
3. Boston University observatory, Boston Creator: Grant, Spencer, 1944- Format: Photographs Collection: Spencer Grant Collection Date: 1978 Institution: Boston Public Library
4. Boston University observatory, Boston Creator: Grant, Spencer, 1944- Format: Photographs Collection: Spencer Grant Collection Date: 1978 Institution: Boston Public Library
5. Boston University observatory, Boston Creator: Grant, Spencer, 1944- Format: Photographs Collection: Spencer Grant Collection Date: 1978 Institution: Boston Public Library
6. A fireworks display is staged near the 107-inch dome at the University of Texas McDonald Observatory Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: [ca. 1969–1996] Institution: Anna Maria College
7. The Loines Observatory of the Maria Mitchell Association of Nantucket Island, Massachusetts Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: [ca. 1968–1996] Institution: Anna Maria College
8. The 200-inch Hale telescope of the Mount Wilson and Palomar Observatories Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: (c) 1965 Institution: Anna Maria College
9. Eagle Nebula (M16, NGC 6611) in Serpens Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: (c) 1965 Institution: Anna Maria College
10. Great galaxy in Andromeda Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: (c) 1965 Institution: Anna Maria College
11. Great nebula in Orion Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: (c) 1965 Institution: Anna Maria College
12. Lagoon and Trifid nebulae in the constellation of Sagittarius Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: (c) 1965 Institution: Anna Maria College
13. Mars, the fourth planet from the sun, often called the "red planet" because of its color Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: (c) 1965 Institution: Anna Maria College
14. Palomar Observatory, Palomar Mountain, California Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: (c) 1965 Institution: Anna Maria College
15. Ring Nebula in the constellation of Lyra Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: (c) 1965 Institution: Anna Maria College
16. Rosettle Nebula (NGC 2237) in Monoceros Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: (c) 1965 Institution: Anna Maria College
17. Topped by a meteorological tower and astronomical observatory dome, Davis Hall at Northern University in DeKalb overlooks a man-made lagoon that serves as a scenic... Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: [ca. 1965–1996] Institution: Anna Maria College
18. Palomar Observatory, Palomar Mountain, California Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: March 19, 1961 Institution: Anna Maria College
19. Dumbbell Nebula (M27, NGC 6853) in Vulpecula Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: (c) 1961 Institution: Anna Maria College
20. The Pleiades Format: Postcards/Cards Collection: Travel Postcards of Charles Blumsack Date: (c) 1961 Institution: Anna Maria College