In 1998, scientists discovered that the expansion of the universe
Subject : Physics
Question: In 1998, scientists discovered that the expansion of the universe has been accelerating. What force is causing this phenomena?
A) dark energy
B) Hubble’s law
C) the Doppler effect
D) background radiation
Expert Verified Solution:
The correct answer is
A) dark energy
In 1998, scientists discovered that the expansion of the universe has been accelerating due to a mysterious force known as dark energy. Dark energy is a theoretical form of energy that permeates all of space and accelerates the expansion of the universe. This discovery was made through observations of distant supernovae, which showed that the rate of the universe’s expansion is increasing over time. This finding has profound implications for our understanding of cosmology and the ultimate fate of the universe.
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