Early universe observations reaffirm existence of dark matter and dark energy

New data continues to reaffirm the existence of the inexplicable dark matter and dark energy.
By Tyler MacDonald | Sep 28, 2018
Although dark energy and dark matter are inexplicable, data continues to reaffirm their existence. And with the final data from Europe's Planck missions released, this continues to be the care.

From 2009 through 2013, the mission mapped the universe's oldest light in great detail, and the European Space Agency (ESA) claims that the results reaffirm the "standard model of cosmology."

"This is the most important legacy of Planck," Jan Tauber, ESA's Planck project scientist, said in a statement. "So far, the standard model of cosmology has survived all the tests, and Planck has made the measurements that show it."

The initial release of the data led to some hesitancy, as the team stressed that the results were preliminary.

"We felt the quality of some of the polarization data was not good enough to be used for cosmology," Tauber said.

But the new release represents a novel method of processing mission data, which lays many doubts to rest.

"Now we really are confident that we can retrieve a cosmological model based solely on temperature, solely on polarization, and based on both temperature and polarization," saidReno Mandolesi of the University of Ferrara in Italy, a principal investigator of the Low Frequency Instrument (LFI)one of Planck's two science instruments. "And they all match."

Of course, nothing is ever certain when it comes to dark energy and dark matter.

"For the moment, we shouldn't get too excited about finding new physics; it could well be that the relatively small discrepancy can be explained by a combination of small errors and local effects," Tauber said. "But we need to keep improving our measurements and thinking about better ways to explain it."

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