GK
SOLAR SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Scientists have documented that galaxies they observe seem to be moving farther away. Which concept best explains this?
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black holes because an unseen force is pulling objects away from the center of the universe
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big bang theory because the universe exploded from a single point in space and is always expanding
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gravitational force because objects are being drawn toward the edges of the universe
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solar system because the mass of the Sun pushes other galaxies away
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Explanation:
Detailed explanation-1: -Hubble’s law, also known as the Hubble–Lemaître law, is the observation in physical cosmology that galaxies are moving away from Earth at speeds proportional to their distance. In other words, the farther they are, the faster they are moving away from Earth.
Detailed explanation-2: -Doppler Red-Shift Evidence The Doppler red-shift of light observed from distant stars and galaxies gives evidence that the universe is expanding (moving away from a central point).
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