An annular eclipse will pass from Oregon to Texas on Saturday, offering millions of people the opportunity to witness a spectacular “ring of fire” in the skies. As cities in the path are bracing for a flock of visitors this weekend, universities, parks, museums and planetariums are preparing to host and educate eager viewers.
An annular solar eclipse takes place when the moon is farthest from Earth. As it passes the sun, the moon does not block it entirely and instead leaves the sun’s bright, outer edges visible, forming a fiery ring, or annulus, around the moon.
