Total Solar Eclipse August 21, 2017

Beware of fake eclipse glasses online

Cardboard frames for solar eclipse glasses are stacked in the American Paper Optics factory in Bartlett, Tenn., on June 21. Adrian Sainz / Associated Press

The American Astronomical Society is warning eclipse watchers to be careful where they buy the special glasses to view the Aug. 21 solar event.

Source: Solar Eclipse 2017

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