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This is an online activity about what would happen if we could travel at or near the speed of light.

This is an activity (located on page 131 of the PDF) related to sleep and circadian rhythms as well as space travel.

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

In this astronomy activity (page 6 of the PDF), learners will compare and contrast two planets in the solar system using data obtained from the internet.

In this data collection and analysis activity, learners evaluate fish physiology and ecology using vision research data from Dr.

Use this Moon Map Guide to help learners identify features on the Moon, while looking through a telescope.

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