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These resources have been reviewed and selected by STEM Learning’s team of education specialists for factual accuracy and relevance to teaching STEM subjects in UK schools.

Life of a Star: Planetary Nebula Lithograph

This resource from NASA describes how low-mass stars expand in size and become red giants at the end of their lives. Then they shed their outer layers and become planetary nebulae.

The image of NGC 2440, a planetary nebula, is on the first page of the lithograph. Background information about the life cycle of stars is on the second page. The lithograph includes a Level One Inquiry activity entitled "In Search of ... Stellar Death," in which students learn to determine the end of the life cycles of different types of stars.

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