They are specifically made out of materials that enable safe sun viewing. "Solar eclipse glasses use lenses that are made of black polymer, a flexible resin infused with carbon particles ...

“You need proper solar-safe viewing glasses or an indirect viewing method whenever the bright face of the sun is visible,” says NASA’s video. “The only time you can look at a total solar ...

and that may be very hard to see without proper sun-viewing glasses, said Jeff Kuhn, a professor and astronomer at the University of Hawaii’s Institute for Astronomy on Maui. By 7:30 a.m., the ...