This Hubble Space Telescope image shows what appears to be a delicate bubble of gas floating serenely in space. In actuality, the bubble is the visible remnant of a powerful supernova explosion called SNR 0509. The bubble was formed from gas that was swept up by the expanding shock wave. The accompanying classroom activity is a curriculum support tool designed for use as an introductory inquiry activity. Students will use the images and text on this lithograph to generate questions about supernova explosions and remnants, then conduct research to answer their questions.
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