Dark matter News
A team of scientists searching for signs of dark matter has detected an unexplained signal. Scientists working on the Xenon1T experiment said that more activity was observed within their detector than expected otherwise.
Our limited understanding of dark matter and energy may be making us blind to signals from intelligent alien life, which possibly exist in dimensions that humans cannot perceive.
The new instrument would begin a five-year observing run at Kitt Peak National Observatory after its installation next year.
The researchers were able to show that 14 of the 16 satellite galaxies follow the same pattern of movement and are likely rotating within the plane around the main galaxy.
For close to a century, researchers have hypothesised that the universe contains more matter than can be directly observed, known as "dark matter".
Calculations show that certain types of dark matter could form giant clouds around astrophysical black holes.
Most notably, the result supports the theory that 26 percent of the universe is in the form of mysterious dark matter and that space is filled with an also-unseen dark energy, which is causing the accelerating expansion of the universe and makes up 70 percent.
The suite of instruments, developed by NASA's Jet Propulsion Laboratory in the US, is called the Cold Atom Laboratory (CAL).
Scientists believe dark matter - theorised, unseen particles that neither reflect nor absorb light, but are able to exert gravity - may comprise 80 per cent of the matter in the universe.
The gamma-ray signal detected by the Fermi Gamma-ray Space Telescope is similar to one seen by Fermi at the center of our own Milky Way galaxy.
Scientists claimed that a small but distinctive X-ray signal detected from the Milky Way galaxy by NASA's Chandra satellite may help prove the existence of dark matter.
The study combined the world's largest galaxy survey -- the Sloan Digital Sky Survey -- with the largest ever set of radio observations for atomic gas -- the Arecibo Legacy Fast ALFA survey in order to solve the case.
Scientists, for the first time, have been able to measure the amount of dark matter the Universe has lost since the Big Bang some 13.7 billion years ago.
Padmanabhan had offered a bet to the audience that in the next ten years there will be no evidence to contradict the theory that dark energy is the root cause of accelerated expansion of the universe.
A previously unknown subatomic light particle may be evidence of a fifth fundamental force of nature and a key to understanding dark matter in universe, according to theoretical physicists at the University of California - Irvine (UCI), US.
The Large Underground Xenon (LUX), world’s most sensitive particle detector, has failed to yield any evidence of dark matter.
According to astrophysicist Alexander Kashlinsky at NASA's Goddard Space Flight Centre in Maryland, this interpretation aligns with our knowledge of cosmic infrared and X-ray background glows and may explain the unexpectedly high masses of merging black holes detected last year.
More than 10 different experiments are planned.
Researchers also found that a surprising fraction of normal matter - 20 per cent - is likely to be have been transported into the voids.
Its discovery would be a fundamental development in understanding the physical universe, a meeting of the American Association for the Advancement of Science (AAAS) will hear.
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