It’s a dance that’s been playing itself out for millennia. On average, once every year and a half, the moon slips directly between the Earth and the sun, punching a hole of darkness into the daytime sky. And whenever possible, there have been people below, looking up.
Experiencing a total solar eclipse is revelatory, especially for people who study them.
"Every eclipse gives you new information,” says Shadia Habbal, an astronomer at the University of Hawaii, originally from Syria.