Chicago Tribune |
NASA issues safety warning as demand for solar eclipse glasses spikes
Chicago Tribune “It now appears that some companies are printing the ISO logo and certification label on fake eclipse glasses and handheld solar viewers made with materials that do not block enough of the sun’s ultraviolet, visible, and infrared radiation to make them … Solar eclipse 2017: 12 things about the Great American Eclipse Solar eclipse lights way for Southern Californians eager for ‘one of nature’s spectacles’ What’s a total solar eclipse and why this one is so unusual |