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Globe at Night
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In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.
Coma Cluster of Galaxies
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In this activity, learners will first learn the basics of galaxy classification and grouping.
Sizing Up the Universe
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In this online interactive challenge, learners choose items to represent the Earth or solar system, then determine other items to represent the Moon, or Milky Way based on their relative size.