IYA2009
The entire year of 2009 marked the astronomy world’s big celebration. The International Year of Astronomy (IYA2009) celebrated Galileo Galilei’s first telescopic observations of the night sky, which happened 400 years prior.
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The entire year of 2009 marked the astronomy world’s big celebration. The International Year of Astronomy (IYA2009) celebrated Galileo Galilei’s first telescopic observations of the night sky, which happened 400 years prior.