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04/23/2024 03:02:39 am

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Universe is Expanding at 9% Faster Than Previously Thought

This illustration shows the three steps astronomers used to measure the universe's expansion rate to an unprecedented accuracy, reducing the total uncertainty to 2.4 percent.

(Photo : NASA, ESA, A. Feild (STScI), and A. Riess (STScI/JHU)) This illustration shows the three steps astronomers used to measure the universe's expansion rate to an unprecedented accuracy, reducing the total uncertainty to 2.4 percent.

Scientists now say that the universe is expanding more rapidly than ever predicted, which is due to a "discrepancy" involving  galactic distances among estimates of the early universe after the Big Bang event and more modern and accurate measurements obtained from more advanced instruments.

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For this recent measurement, astronomers utilized NASA's Hubble Space Telescope in order to measure the distance of 19 galaxies between each other with the most accurate results ever produced. These numbers now suggest that the universe is expanding at a rate that is five to nine percent faster than previous rates that are measured from the infant universe.

In this new study, scientists believe that this crucial difference in measurements could offer more clues about how dark matter work in the universe.

According to Adam Riess from the Space Telescope Science Institute and Johns Hopkins University, this is a surprising finding that can lead to an important clue in those cosmic forces that are invisible or do not emit light, like dark matter, dark energy and dark radiation, which makes up 95 percent of the entire universe, which could also explain how the universe expands.

This is now the most accurate calculation yet about the universe's current expansion, which is known as the Hubble constant, possessing a margin of error of only a mere 2.4 percent.

These new calculations are expected to provide a pivotal connection between observations and calculations based on the Big Bang afterglow that have been consolidated by the NASA's Wilkinson Microwave Anisotropy Probe and the European Space Agency's Planck satellite.

Reiss explains that what began from two ends, that are expected to meet in the middle, based from presumably correct calculations and measurements, but now, this new finding is comparable to these two ends not meeting in the middle, and this is where the dilemma begins.

To date, astronomers are now going over their data in order to reduce this margin of error to less than two percent, which could end up with two disagreeable Hubble constants.

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