A new study suggests that Earth is in the midst of a "dark matter hurricane," and scientists are optimistic that it offers a better chance of discovering the elusive material. It is believed that the dark matter was left by a dwarf galaxy that collided with our own long ago.
Scientists call this group of dark matter the S1 current. However, they can not really "see" it: they thought it existed because of about 30,000 identified stars of a different chemical composition than the Milky Way Milky Way. These stars move along a similar elliptical path, strongly suggesting that they are remnants of a dwarf galaxy that collided with the Milky Way a long time ago.
As the S1-stellar stream path passes through the solar system, the dark-matter hurricane CNet reported to have a better chance of finding various traces of these hypothetical particles for various detectors scattered around the world.
Scientists from the University of Zaragoza, King's College London and the Institute of Astronomy in the UK made the discovery of the findings published in the journal Physical Review D on November 7.
"[There are] tons of these creeks across the galaxy, some of them are really huge and you can see them in the sky," Ciaran O'Hare of The University of Zaragoza and one of the authors of the study told Astronomy that they believe that these streams contain large amounts of dark matter.
They identified the stars with the European Space Agency's Gaia probe, a satellite launched in 201
The existence of dark matter is not & # 39; NASA notes that this has been directly observed, but notes it from the needs of observed behavior through "regular" matter in the universe.
"The expansion of the universe has not slowed down due to gravity, as everyone thought has accelerated," states NASA, that either Albert Einstein's theory of gravity is wrong or there is something else, another form of matter or energy that you can not see, but work on the matter that we can see. This big question mark in physics is called dark matter / energy.
"It turns out that about 68 percent of the universe is dark energy, and dark matter accounts for about 27 percent." the space agency notes. "The rest – everything on Earth, everything ever seen with all our instruments, all normal matter – makes up less than 5 percent of the universe."
The dark matter should, when it's there, fly past the earth around 143 miles per second, the authors note. But do not worry, it will not be that fast. We should have at least a million years to study this "dark matter hurricane" before moving on.
Source: Sputnik News
King's College London
Stellar Chemistry, the Universe and Everything in It
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Scientists refine the search for dark matter
Sweden (SPX) October 30, 2018
Researchers at the University of Lund in Sweden have developed, among other things, a more effective method for finding evidence of dark matter in the Universe. You can now analyze much larger quantities of data generated at CERN.
At the CERN research facility, a long series of proton experiments is performed that collide at near the speed of light in the LHC accelerator. The amount of data is constantly increasing as the capacity of the accelerator improves.
However, it is more difficult to … read more