Wondering what to do with those eclipse glasses? You have a couple of options. For one thing, you could just hang on to them for the next total eclipse in April 2024. If your glasses were made by one of the 12 manufacturers that met requirements from NASA and American Astrological Standards, they’re good forever, provided they’re not scratched, punctured or torn. Or, you could donate them. Astronomers Without Borders wants people to donate them so people in South America and Asia can use them for their eclipse in 2019. To donate, go to astronomerswithoutborders.org.