NASA has issued guidelines on how to watch next month’s Great American Total Solar Eclipse.
The government agency noted the only safe way to look directly at partially eclipsed or uneclipsed Sun are via special-purpose solar filters, including “eclipse glasses” or handheld solar viewers.
“Homemade filters or ordinary sunglasses, even very dark ones, are not safe for looking at the Sun,” NASA wrote in its guidelines.
NASA added that four manufacturers have certified their eclipse glasses meet the international standards: Rainbow Symphony, American Paper Optics, Thousand Oaks Optical and TSE 17.
NASA has also said that the solar filter should be inspected prior to use. If it is scratched or damaged in a way, it should be discarded. Children should also be carefully supervised when using social filters, NASA said.Read more...
The government agency noted the only safe way to look directly at partially eclipsed or uneclipsed Sun are via special-purpose solar filters, including “eclipse glasses” or handheld solar viewers.
“Homemade filters or ordinary sunglasses, even very dark ones, are not safe for looking at the Sun,” NASA wrote in its guidelines.
NASA added that four manufacturers have certified their eclipse glasses meet the international standards: Rainbow Symphony, American Paper Optics, Thousand Oaks Optical and TSE 17.
NASA has also said that the solar filter should be inspected prior to use. If it is scratched or damaged in a way, it should be discarded. Children should also be carefully supervised when using social filters, NASA said.Read more...