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RafaThe expansion of the universe can be compared to the inflation of a balloon being blown up. Just like how the distances between points on the balloon's surface increase as it inflates, the universe's expansion causes galaxies to move away from each other as space-time itself expands.
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The mysterious force that may be causing the expansion of the universe to accelerate is called?
dark energy. It is a hypothetical form of energy that is proposed to make up about 68% of the universe and is thought to be responsible for the accelerated expansion of the universe.
What is an accelerating universe?
An accelerating universe is a theory which describes and seeks to explain the increasing rate of the expansion of the universe.
What two quantities did Edwin Hubble compare to discover the expansion of the Universe?
Edwin Hubble compared the distances to galaxies (based on their brightness) and their redshifts (due to the Doppler effect) to discover the expansion of the Universe. By finding a relationship between these two quantities (dubbed Hubble's Law), he provided evidence that the Universe is expanding.
What is pulling the universe apart?
The expansion of the universe is causing galaxies to move away from each other, with space itself expanding between them. This expansion is driven by dark energy, a mysterious force that counteracts the gravitational pull of matter in the universe.
What will cause the rate of expansion of the universe to slow down?
The rate of expansion of the universe may slow down due to the gravitational pull from matter and energy present in the universe, which acts as a cosmic brake on the expansion. This effect is often referred to as cosmic deceleration.
