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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 will imagine the challenges and opportunities of asteroid mining.

Use this model to demonstrate the goal of NASA's Kepler Mission: to find extrasolar planets through the transit method.

In this activity, learners use a simple 3D model to discover why the Moon has phases.

In this activity (on page 5 of PDF), learners use dry ice and household materials to make scientifically accurate models of comets.

In this activity, learners build a scale model of the solar system using a roll of toilet paper.

This fun and simple hands-on astronomy activity lets learners make 3-dimensional models of the Earth and Moon.

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.

This fun and simple hands-on astronomy activity lets learners imagine what would happen if our Sun were replaced with a black hole.