NASA’s 10 crewed Project Gemini flights, which launched in 1965 and 1966, were instrumental in delivering the knowledge and testing that would lead to landing astronauts on the moon in

Specifications Optics: Fully multicoated lenses and prisms Design: Roof prism Magnification: 10x Objective lens: 1.2 inches (30 mm) Waterproof/fog-proof: Yes / Yes Field of view at 330 feet (1,000 m):

Long before space travel, we looked up and wondered. Telescopes became our first spacecraft — tools that let us explore the universe without leaving the ground. Today, observatories span the

Comets of this type aren’t everyday sightings. The opportunity to observe objects that might have orbital periods measured in thousands of years is fleeting. So when Comet Lemmon recently appeared