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Technologies Review | November 15, 2018

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dark energy

What is Dark Energy and Dark Matter?

June 14, 2018 |

When astronomers discovered that galaxies are moving apart from each other, this led to the “Big Bang” theory on the origin of the universe. However, when they were better able to precisely measure the rate of expansion, they were shocked to realize that the expansion is actually accelerating. This defied logic because over time gravity should be slowing the expansion. The only explanation for this was that there must be an as yet undiscovered, unmeasured force, far stronger than gravity, which was repelling galaxies. Scientists dubbed this strange force “dark energy.”

Dark energy is called “dark” because nobody really understands what it is. However, there is definitely something happening to accelerate the rate of expansion. In fact, to account for the expansion, scientists estimate that 74% of the universe is dark energy. Although it would not happen until billions of years in the future scientists fear that dark energy will cause the universe to expand … Read More