Match the letters below with the correct choice on the right…
Match the letters below with the correct choice on the right. Selections on the right may be used once, more than once, or not at all. The proportionality between the galactic speed and distance was discovered in 1929 by the astronomer Edwin Hubble and is known as Hubble’s law. This law states that the ___A___ the distance of galaxies from earth, the faster the galaxies are traveling. The universe, in other words, is ___B___ with the result that its component galaxies are moving further apart. The ___C___ shift in the light from a galaxy is determined by how much the universe has expanded since the galaxy emitted the light.
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