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Space telescopes can offer us better, clearer views of the universe (and of our own planet) than Earth-based telescopes can, but getting these large, delicate pieces of equipment into orbit is tricky.

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

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