All observable objects outside our galaxy, when viewed from Earth, have their spectra shifted to slightly longer wavelengths. Astronomers have concluded that this is evidence that all objects in the universe are-
A. hotter than our Sun.
B. moving away from each other.
C. older than our solar system.
D. absorbing radiation from stars.
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Home » Geography » All observable objects outside our galaxy, when viewed from Earth, have their spectra shifted to slightly longer wavelengths. Astronomers have concluded that this is evidence that all objects in the universe are- A. hotter than our Sun. B.