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

Space Guess Quest is a fun game that encourages participants to identify the many types of objects in space, from human-made spacecraft to nebulas, galaxies, stars, and worlds.

In this space science activity, learners explore transits and the conditions when a transit may be seen.

This fun and simple hands-on astronomy activity describes techniques scientists use to find planets orbiting other stars.