Classified for credit

Public observatory with telescopes for nighttime viewing — covers astronomy, optics, and celestial navigation.

Public observatory at Markham Park with telescopes for public stargazing — covers astronomy, optics, and celestial mechanics.

Public community observatory in Michigan offering telescope viewing sessions and introductory astronomy and optics curriculum.

Small science center in Easton, ME — hands-on STEM exhibits and beginner science programs.

College-based public planetarium with full-dome projection — astronomy, the solar system, and earth science aligned to standard science curriculum.

Licensed wildlife rehabilitation facility — vertebrate anatomy, injury/recovery biology, and native wildlife conservation.

Public observatory in Fremont Peak State Park — volunteer-led programs cover telescope optics, astrophysics, and observational astronomy.

Historic transatlantic telegraph cable relay station — covers telegraphy, electrical communication history, and 19th-century global information networks.

Public observatory and sky theater open on clear Friday nights — covers naked-eye astronomy, telescope optics, and celestial mechanics.

Public observatory and dark-sky science center with telescopes and programming — covers astronomy, optics, and observational math.

Historic prairie homestead paired with a gem and mineral collection — covers geology, mineralogy, and 19th-century agricultural history.

University-affiliated observatory with public viewing nights — covers observational astronomy, telescope optics, and basic astrophysics.

Outdoor garden railway exhibit — covers engineering scale, mechanical systems, and model railroad physics in a botanical garden setting.

Federal fish hatchery on the Missouri River — applied aquaculture, native fish biology, and water-resource management with raceway tours.

Natural history museum at SUU featuring regional fossils, geology, and paleontology specimens from the Colorado Plateau.

Army Corps of Engineers dam on the Missouri River with a visitor center — covers hydroelectric power generation, flood control engineering, and river ecology.

Community observatory in South Carolina open for public nights — covers telescope operation, stellar observation, and basic astrophysics.

Amateur observatory in rural New Mexico open for public viewing — covers telescope optics, celestial mechanics, and observational astronomy.

Hands-on gem and mineral identification studio in NYC — covers mineralogy, crystallography, and earth science through tactile specimen analysis.

College of the Atlantic's natural history museum with Maine coastal and Acadian specimens — covers marine biology, ecology, and regional natural history.

Public planetarium at the University of North Georgia — covers astronomy, celestial mechanics, and the physics of light through live sky programs.

Campus planetarium with sky shows — covers astronomy, celestial mechanics, and the mathematics of orbital motion.

Small museum dedicated to the history of electricity generation in Georgetown, Colorado — covers hydroelectric power, AC/DC technology, and energy infrastructure.

University of Georgia natural history museum with fossil, mineral, and biological specimen collections supporting geology, ecology, and taxonomy studies.