Recent observations from the James Webb Telescope confirm earlier findings that the universe is expanding up to 8% faster than previously believed. However, this old observation was never due to miscalculations and could be associated with dark energy.
The rate of expansion of the universe is called the Hubble constant. It is measured in kilometers per second per megaparsec. However, the Hubble constant is faster than it was after the Big Bang when the universe was formed. The difference is called the Hubble Tension and has been a mystery to physicists for nearly a century. The New findings from the James Webb Telescope have just proved its existence.
Over the billions of years since the Big Bang, the expansion of the universe has been speeding up. This is due to a Mysterious Force called dark energy. It is a repulsive substance that counteracts the force of gravity. It currently makes up 68% of the universe's total energy density and could be the solution to the Hubble Constant.
Dark energy is a complicated form of energy we don't yet understand, and it is causing the universe to expand very fast. Finding out its secrets can unlock a new understanding of our growing universe.
[Sources: Associated Press; Newsweek; Johns Hopkins University]
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