NASA is warning against knockoff eclipse goggles:
https://www.theatlantic.com/science/...m_source=atltw
Quote:
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If you search a retail website like Amazon for “eclipse” these days, you’ll be inundated by eclipse-related eyewear. That includes unsafe knockoffs, NASA warns. NASA is now recommending only using eclipse glasses that have been manufactured by four U.S. companies: American Paper Optics, Rainbow Symphony, Thousand Oaks Optical, and TSE 17.
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