Friday, July 3, 2020

The universe is actually flat, new dark energy measurements reveal

Researchers led by the University of Portsmouth have improved the way dark energy is measured, leading to a shocking discovery: the universe is actually flat. This contradicts the previous notion that the universe is a never-ending expansion of a bubble. The new method, described in Physical Review Letters, introduces a new method where a combination of cosmic voids and baryon acoustic oscillations acts as a “ruler” to measure the dark energy that that drives the expansion of the universe.

The new method allows for more fine-tuned results, giving us a more accurate measurement of the effects of dark energy. It is much more accurate than the old method, which relied on observing supernovae. The new measurements further back the model where the universe is spatially flat and disfavor the expanding bubble model.

Read Also: Scientists have recreated the first life on Earth from 3.8 billion years ago

The values of the energy density of matter (?_m) and dark energy (?_?) in the Universe measured from different cosmological data. | Image: Seshadri Nadathur/University of Portsmouth’s Institute of Cosmology and Gravitation (ICG)

Lead author Dr. Seshadri Nadathur says, “This result shows the power of galaxy surveys to pin down the amount of dark energy and how it evolved over the last billion years. We’re making really precise measurements now and the data is going to get even better with new surveys coming online very soon.” Source: SciTechDaily.

However, this doesn’t necessarily imply that the universe is an ever-expanding sheet of paper. The data also supports a toroidal model, which is also based on the “flat theory.” However, this research still doesn’t give us 100% concrete evidence. It just favors one model over the other. There is still a lot more we need to learn before we can fully understand the creation and expansion of our universe.

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