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Nearby Galaxy

Photo: Color composite of a spiral galaxy

A color-composite image shows the NGC 300 galaxy, a spiral galaxy like the Milky Way located about seven million light-years from Earth. In this image, young, hot stars are the blue dots that comprise much of the outer arms. Older stars are in the middle and appear yellow-green.

Photograph courtesy NASA/JPL/Caltech/R. Hurt (SSC)