Butterfly Nebula

This image of the Butterfly Nebula was taken by NASA’s Hubble telescope. It has been studied by astronomers who have discovered dramatic changes in the “wings” over the past eleven years. The rare hour-glass shapes are likely formed by the gravitational tug from a second star orbiting the nebula’s parent (an aging red giant star), causing the material to expand into a pair of wings.

Jeffrey (jmishlove@newthinkingallowed.com)

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