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08
MayWorld Migratory Bird Day
The Second Weekends of May and October are events observed twice each year as World Migratory Bird Day to focus world attention on the need to protect migratory bird populations, their habitats, and their international flyways. Through exchanges of … Continue reading →
22
AprEarth Day
April 22, Earth Day, is celebrated around the world as tens of millions of people make time to attend their environment. Thousands of governments – from local to regional to state, provincial or federal – plan awareness campaigns and activities … Continue reading →
Tag Archives: Annie Jump Cannon
Celestial Computer
On December 11, 1863, American astrophysicist Annie Jump Cannon was born. She learned about constellations from her mother. However, from a fever early in her life, Cannon was hearing impaired. She studied physics at Wellesley and took graduate courses in … Continue reading
Posted in On This Day
Tagged Annie Cannon, Annie Jump Cannon, December 11, On This Day, star classification, The Roberta Bondar Foundation
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