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In this online activity, learners build their own system of heavenly bodies and watch the gravitational ballet.

In this activity, learners work in groups to design a parachute out of household items that keeps an egg secure when dropped from a certain height.

In this activity, learners cut out and fold their own collapsible origami starshade, an invention that shields a telescope's camera lens from the light of a distant star so that NASA scientists can ex

In this activity, learners explore how distance can affect the way we perceive the size of an object.