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Supernova Educators Unit: a series of activities designed to teach students about supernova, including why stars explode, how the expanding gas can be used to determine the age of the supernova, and all about pulsars. Dying Stars and the Birth of the Elements: an online activity about how heavy elements like iron and calcium are created in the fiery forge of a supernova. Students examine an actual X-ray spectrum of a supernova and determine how hot and how much of each element are in it!
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