Spiral galaxies are often stunning in photographs. Visually, they can exhibit bright, blue spiral arms. Why is this the
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Spiral galaxies are often stunning in photographs. Visually, they can exhibit bright, blue spiral arms. Why is this the
Spiral galaxies are often stunning in photographs. Visually, they can exhibit bright, blue spiral arms. Why is this the case? a. because a small population of very hot stars are extremely luminous b. because stars that peak at longer wavelengths of visible light are the most numerous stars in the galaxy c. because stars that peak at shorter wavelengths of visible light are the most numerous stars in the galaxy d. because the gas and dust within the arms radiates very short-wavelength visible light
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