Chilean National Day of Astronomy
"Cerro Tololo will celebrate the Chilean National Day of Astronomy with Gemini and Explora-Conicyt with a whole week of astronomy activities, starting the 17th of March, 2017."
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"Cerro Tololo will celebrate the Chilean National Day of Astronomy with Gemini and Explora-Conicyt with a whole week of astronomy activities, starting the 17th of March, 2017."