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Archive for the ‘cosmology’ category: Page 286

May 31, 2020

Discovery of Massive Galaxy Just 1.5 Billion Years After the Big Bang Has Astronomers Questioning Formation Models

Posted by in category: cosmology

Published recently in Nature, an international team of researchers has observed a massive, rotating disk galaxy just 1.5 billion years after the Big Bang —1.5 billion years earlier in cosmic history than astronomers had expected to find such a galaxy based on previous studies. The research has fueled debate about how galaxies in the early Universe assembled.

The observations were made using one of the most powerful radio telescopes in the world, the Atacama Large Millimeter/submillimeter Array (ALMA), in the Atacama Desert in northern Chile.

“This is an exciting discovery for astronomers because it provides clues as to how large-scale structure began to form in the Universe,” said Dr. Alfred Tiley from the UWA node of the International Centre for Radio Astronomy Research (ICRAR).

May 30, 2020

The universe had a ‘missing matter’ problem. Now it’s been solved

Posted by in category: cosmology

Half of the normal matter in the universe has been hiding since the Big Bang. Astronomers have just detected it for the first time.

May 30, 2020

A Parallel Universe Where Time Runs Backwards Has Been Detected By NASA Scientists

Posted by in categories: cosmology, particle physics, quantum physics

NASA has conducted an experiment in Antarctica, which has revealed new evidence that a parallel universe exists, except the rules of physics, are the opposite of ours.

Physicists have been debating among one another since 1952 of the possibility of a multiverse, whereby many universes exist parallel to ours. These universes could have different laws of physics, or even be similar to ours — just with different timelines.

The original theory was proposed by Quantum science pioneer Erwin Schrodinger, and even he admitted that he might have seemed a little crazy when he hosted that lecture. But now a new discovery has pushed scientists to reconsider if his theory is really as far-fetched as they thought it was. A cosmic ray detection experiment in Antarctica found a particle that very well may be from another universe.

May 29, 2020

Half the matter in the universe was missing—we found it hiding in the cosmos

Posted by in category: cosmology

In the late 1990s, cosmologists made a prediction about how much ordinary matter there should be in the universe. About 5%, they estimated, should be regular stuff with the rest a mixture of dark matter and dark energy. But when cosmologists counted up everything they could see or measure at the time, they came up short. By a lot.

May 28, 2020

Next-gen laser facilities look to usher in new era of relativistic plasmas research

Posted by in categories: cosmology, physics

The subject of the 2018 Nobel Prize in physics, chirped pulse amplification is a technique that increases the strength of laser pulses in many of today’s highest-powered research lasers. As next-generation laser facilities look to push beam power up to 10 petawatts, physicists expect a new era for studying plasmas, whose behavior is affected by features typically seen in black holes and the winds from pulsars.

May 27, 2020

Mysterious ‘Fermi Bubbles’ may be the result of black hole indigestion 6 million years ago

Posted by in category: cosmology

Twin shock waves produced by the galaxy’s central black hole could have inflated the gargantuan Fermi Bubbles about 6 million years ago, a new study suggests.

May 27, 2020

Novel insight reveals topological tangle in unexpected corner of the universe

Posted by in categories: biological, computing, cosmology, mathematics, nanotechnology, particle physics

Just as a literature buff might explore a novel for recurring themes, physicists and mathematicians search for repeating structures present throughout nature.

For example, a certain geometrical structure of knots, which scientists call a Hopfion, manifests itself in unexpected corners of the universe, ranging from , to biology, to cosmology. Like the Fibonacci spiral and the golden ratio, the Hopfion pattern unites different scientific fields, and deeper understanding of its structure and influence will help scientists to develop transformative technologies.

Continue reading “Novel insight reveals topological tangle in unexpected corner of the universe” »

May 27, 2020

Physicists measure a short-lived radioactive molecule for first time

Posted by in categories: cosmology, physics

Researchers at MIT and elsewhere have combined the power of a super collider with techniques of laser spectroscopy to precisely measure a short-lived radioactive molecule, radium monofluoride, for the first time.

Precision studies of radioactive molecules open up possibilities for scientists to search for new physics beyond the Standard Model, such as phenomena that violate certain fundamental symmetries in nature, and to look for signs of dark matter. The team’s experimental technique could also be used to perform laboratory studies of radioactive molecules produced in astrophysical processes.

“Our results pave the way to high-precision studies of short-lived radioactive molecules, which could offer a new and unique laboratory for research in fundamental physics and other fields,” says the study’s lead author, Ronald Fernando Garcia Ruiz, assistant professor of physics at MIT.

May 24, 2020

We Haven’t Been Zapped Out Of Existence Yet, So Other Dimensions Are Probably Super Tiny

Posted by in category: cosmology

In theory, other dimensions aren’t big enough to form black holes and consume our universe or it would have happened already.

May 22, 2020

NASA didn’t discover a parallel universe — but here’s what one would look like

Posted by in category: cosmology

Recent media reports have claimed that a NASA experiment has detected evidence of a parallel universe, but astrophysicists disagree.