Galaxies are moving apart due to the expansion of the universe. Suppose another galaxy-approximated as a sphere-is moving away from us at 3.00 x 106 m/s. How will an Earth-bound observer with access to extremely high resolution equipment perceive the other galaxy's shape? a It will appear as a sphere to the Earth-bound observer with its dimensions unchanged. It will appear as a sphere to the Earth-bound observer, with all dimensions stretched proportionally to the relativistic factor. b It will be stretched in the direction of travel away from Earth proportionally to the relativistic factor.
Galaxies are moving apart due to the expansion of the universe. Suppose another galaxy-approximated as a sphere-is moving away from us at 3.00 x 106 m/s. How will an Earth-bound observer with access to extremely high resolution equipment perceive the other galaxy's shape? a It will appear as a sphere to the Earth-bound observer with its dimensions unchanged. It will appear as a sphere to the Earth-bound observer, with all dimensions stretched proportionally to the relativistic factor. b It will be stretched in the direction of travel away from Earth proportionally to the relativistic factor.
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