Never use regular sunglasses to observe the sun. The only safe way to look directly at the sun is through specifically designed solar filters, using solar eclipse glasses for direct viewing and solar filters for telescopes and binoculars. Today's best deals on eclipse glasses: US$19.99 US$6.9...
Do not look directly at any part of the sun without protective equipment, even near totality. "This equipment could be approved solar eclipse glasses (not sunglasses) or a properly filtered telescope or properly filtered pair of binoculars." Teets added that a skywatcher should "never put on...