The biggest celebration takes place on the National Mall, where the National Air and Space Museum is joined by scientific organizations including NASA and the National Oceanic and Atmospheric Administration for a free, family-friendly afternoon festival. View the eclipse safely through solar telescopes and sun spotters, watch live NASA video from the path of totality, or see the sun through a satellite’s ultraviolet cameras. Hear about how ancient civilizations thought about eclipses, create art with a pinhole, and learn about color patterns in sunlight by using prisms and a spectrograph. A “limited number” of solar eclipse viewing glasses will be available at the event, but the Air and Space Museum is also giving out glasses while supplies last at the downtown museum and the Steven F. Udvar-Hazy Center beginning in late March. In addition, glasses will be available for sale in museum gift shops. Noon to 4 p.m. National Mall between Fourth and 12th streets. airandspace.si.edu. Free.
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