The View from Above: The Gemini Visual Acuity Experiments - NASA
• NASA conducted visual acuity experiments during the Gemini program to determine if astronauts could identify small details on Earth's surface from an altitude of 100 miles. • The tests focused on the human eye's ability to resolve specific targets and landmarks while orbiting the planet. • These experiments were critical for evaluating the feasibility of manual orbital observations and the potential for astronauts to assist in Earth-based reconnaissance.
nasa.gov
