GK
THE UNIVERSE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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At one time, most people believed that the Universe was static, meaning it did not change. When larger and better telescopes were invented in the early 1900s, however, it was discovered that light from objects in space shifted toward longer wavelengths. Scientists concluded that only an expanding Universe could explain this shift.Which of the following statements is supported by this example?
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Scientific knowledge can change when new evidence or interpretations arise.
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The principle of the expanding Universe is a scientific law.
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The theory of the expanding Universe cannot change, even if new evidence arises.
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Once a scientific theory has been accepted, it can never change.
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Explanation:
Detailed explanation-1: -This means that no matter what galaxy you happen to be in, all the other galaxies are moving away from you. However, the galaxies are not moving through space, they are moving in space, because space is also moving. In other words, the universe has no center; everything is moving away from everything else.
There is 1 question to complete.