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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 →
12
AprInternational Day
of Human Space FlightOn April 12, 1961, Soviet cosmonaut Yuri Gagarin became the first person to travel into space. He made a 108-minute orbital flight in the fully automated Vostok 1 space capsule. Gagarin did not land in his space capsule. Vostok … Continue reading →
Tag Archives: December 11
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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