Classified for credit

College-operated public planetarium with sky shows — covers astronomy, celestial mechanics, and the solar system.

Campus-based public observatory in Mankato — covers telescope use, planetary science, and introductory celestial navigation.

Utah public observatory complex — telescope viewing and astronomy programs on scheduled public nights.

Small museum dedicated to Stanzel family model aircraft — covers aerodynamics, mechanical engineering principles, and mid-20th-century aviation manufacturing.

University of Montana public observatory room with telescopes — supports observational astronomy and optics instruction in a university STEM setting.

Amateur astronomy research observatory open for public programs — covers telescope optics, celestial mechanics, and observational astronomy.

Public star-party program in a dark-sky area near Kanab — covers naked-eye and telescopic astronomy, light pollution, and celestial navigation.

Private public-access observatory offering guided stargazing and telescope use — supports astronomy, optics, and observational science skills.

Public observatory in coastal Maine — telescope-based astronomy programming covering celestial navigation, optics, and stellar science.

Public observatory in Fort Collins offering telescope viewing and astronomy programs — covers optics, stellar classification, and dark-sky science.

Public observatory in Eden Prairie offering telescopic viewing and astronomy programming — covers celestial mechanics, optics, and observational astronomy.

Dark-sky astronomy program in southwest Florida — covers light pollution, naked-eye astronomy, constellation identification, and observational science.

Working steam engine museum demonstrating 19th-century mechanical engineering, thermodynamics, and the role of steam power in agricultural history.

University planetarium with star-projection shows covering astronomy, celestial mechanics, and observational science.

University-operated observatory open to the public — covers telescope mechanics, stellar observation, and applied astrophysics.

Public observatory with telescope access — covers astronomy, optics, and celestial mechanics through direct observation.

University of Arizona research observatory offers public mirror lab tours and programs covering optics, telescope design, and astrophysics.

Small fossil and bone shop in Tecumseh offering hands-on access to real specimens — supports paleontology, skeletal anatomy, and earth science.

Dark-sky observatory in the Shenandoah Valley offering public viewing nights — covers astronomy, optics, and celestial navigation.

Preserved 19th-century iron furnace site — covers metallurgy, industrial history, and the charcoal iron-making process.

Restored 19th-century grist mill demonstrating grain-milling mechanics, water-power engineering, and antebellum Georgia agricultural history.

Campus planetarium offering dome shows on astronomy and space science — covers celestial mechanics, star life cycles, and observational astronomy.

Olivet Nazarene University public planetarium with dome theater — covers astronomy, the solar system, and celestial navigation through projected sky programs.

Subaru 8.2m optical-infrared telescope on Mauna Kea — covers astrophysics, optics engineering, and the science of large telescope design.