(Each resembled a lentil, or lens in Latin ... a better refractor The spyglass-turned-telescope had limitations, some of which Galileo was able to design around. To reduce distortions such ...

In the hands of Galileo, a crude telescope became an instrument of revolution. Now astronomy is honoring its origins. One group is launching Galileoscope, reproducing replicas of the telescope for ...

The investigation of light and optical properties stretches back centuries, at least to the ancient Greeks, Egyptians, and Mesopotamians. In fact, even artificial lenses date back to as early as ...