How to avoid buying counterfeit solar eclipse glasses (ABC News) More

Experts are urging Americans watching the Aug. 21 total solar eclipse to buy smart when purchasing the necessary protective eyewear.

With counterfeit eclipse glasses hitting the market, NASA and the American Astronomical Society (AAS) suggest that consumers purchase off their long list of verified products to ensure safe viewing.

Retired NASA astrophysicist and photographer Fred Espenak told ABC News that he has heard rumors of counterfeit glasses being sold online.

It is unclear if there are counterfeit glasses also being sold in stores or by street vendors.

“The only way you can be sure that they’re not fake glasses is to buy them from a reliable source,” Espenak said.

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