Dark energy has served, over the last 100 years, to justify the expansion of the Universe, with unknown origins. Now, a team of researchers says that dark energy simply does not exist.
A team of physicists and astronomers from the University of Canterbury in Christchurch, New Zealand, appealed a improved analysis of supernova light curves to show that the Universe is expanding in a more varied and “more luminescent” way than previously thought, says .
As the study authors concluded, black energy does not exist and the accelerated expansion of the universe is a illusion caused by gravitywhich slows down the temp.
The study was published this Thursday in the magazine Monthly Notices of the Royal Astronomical Society Letters, and the main author, David Wiltshiresays that “the results show that we don’t need dark energy to explain why the Universe appears to be expanding at an accelerated rate.”
The new evidence supports the “timescape” model of cosmic expansion, which does not require dark energy because differences in the stretching of light are not the result of an accelerating universe, but rather a consequence of the way we calibrate time and distance.
Dark energy will be a weak anti-gravity force that acts independently of matter and that constitutes approximately two-thirds of the mass-energy density of the Universe.
Over the last few years, it has been common to talk about this type of energy to try to justify the accelerated growth of the Universe, but, according to the study authors, “the research provides convincing evidence that can resolve some of the main questions related to peculiarities of our expanding cosmos“.
And Wiltshire goes further: he even guarantees that, “with the new data, The biggest mystery of the Universe — its expansion — could be solved by the end of the decade“.
Both to Hubble voltage (the expansion of the early Universe is at odds with the current expansion) is difficult to solve in models that use a simplified 100-year-old cosmic expansion law — the Friedmann equation.
This was a problem, but now scientists believe that “a simple expansion law, consistent with Einstein’s general relativity, does not have to obey the Friedmann equation.”
Researchers say the European Space Agency satellite, which was launched in July 2023, has the power to test and distinguish the Friedmann equation from the time alternative. However, this will still require at least 1000 independent observations of high-quality supernovae.
The Christchurch team also worked closely with the Pantheon+ collaboration team, who produced a catalog of 535 supernovae different.
New Zealand researchers can also point to a convincing resolution of the Hubble tension and other anomalies related to the expansion of the Universe.
