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Day, a celebration that San Francisco’s Exploratorium invented back in 1988 that has become an international sensation.
Exploratorium12d
Pi (π) Day Returns on 3/14 with a Celestial Twist
SAN FRANCISCO (February 28, 2025) – Get ready for a stellar celebration as the Exploratorium marks its 38th annual Pi Day on ...
San Francisco Examiner2d
At Pi Day’s SF home, annual celebration a year-round effort
Exploratorium employees say this year’s Pi Day — the annual March 14 celebration honoring the number and its associated Greek ...
USA Today3d
Total lunar eclipse 2025: What to know about this week's 'blood moon'
This story was updated to add sky cover map at time of eclipse. A "blood moon" total lunar eclipse will occur late Thursday, astronomers say. The moon will turn deep shades of rusty-red ...