Wherever you choose to get your eclipse glasses from, make sure they meet the safety requirements of the ISO 12312-2 international standard and are sold from a reputable seller acknowledged by the ...
But if you really run into problems getting eclipse glasses, there are some workarounds. You can make a pinhole projection to see what the sun shape looks like on the ground, for example ...
In addition, if your eclipse glasses are ever damaged, NASA recommends you throw it away and find a suitable replacement. And if you have little ones joining you on your viewing adventure ...
The biggest way to make sure your eclipse glasses are safe to use is if they have ISO 12312-2 printed on them, which refers to "International Organization for Standardization." Safe eclipse ...