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This is a classic exercise for visualizing the scale of the Solar System.

In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

Through a series of simple body movements, learners gain insight into the relationship between time and astronomical motions of Earth (rotation about its axis, and orbit around the Sun), and also abou

This fun hands-on astronomy activity uses a variety of simple props to help learners understand why they see what they see in a telescope.