Archive for the ‘cosmology’ category

May 18, 2019

The universe may be a billion years younger than we thought. Scientists are scrambling to figure out why

Posted by in category: cosmology

New research suggests that the Big Bang that birthed the cosmos occurred 12.5 billion years ago.

The Large Magellanic Cloud, a satellite galaxy of the Milky Way, is nearly 200,000 light-years from Earth. ESA / Hubble / Josh Lake / via AFP — Getty Images.

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May 18, 2019

Mapping historical changes in dark matter

Posted by in categories: cosmology, mapping

Combining Einstein’s theory of relativity with one of the most powerful telescopes in the world has helped an international team of researchers measure where and how dark matter structures grow in the universe. Their analysis suggests cosmic structures might be evolving more slowly than previously predicted.

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May 17, 2019

‘The Big Bang Theory’ takes math notes from Carl Pomerance

Posted by in categories: cosmology, information science, mathematics, quantum physics

A prime number theory equation by mathematics professor emeritus Carl Pomerance turned up on The Big Bang Theory, where it was scrawled on a white board in the background of the hit sitcom about a group of friends and roommates who are scientists, many of them physicists at the California Institute of Technology.

In a recent paper, “Proof of the Sheldon Conjecture,” Pomerance, the John G. Kemeny Parents Professor of Mathematics Emeritus, does the math on a claim by fictional quantum physicist Sheldon Cooper that 73 is “the best ” because of several . Pomerance’s proof shows that 73 is indeed unique.

The Big Bang Theory is known for dressing the set with “Easter eggs” to delight the self-avowed science nerds in the audience. When UCLA physics professor David Saltzberg, technical consultant for The Big Bang Theory, heard about the Sheldon proof, he contacted Pomerance to ask if they could use it in the show, which was broadcast April 18.

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May 17, 2019

High School Student Uses AI to Detect Gravitational Waves

Posted by in categories: cosmology, education, employment, physics, robotics/AI, supercomputing

Before he could legally drive, high school student Adam Rebei was already submitting jobs on the Blue Waters supercomputer at the National Center for Supercomputing Applications at the University of Illinois at Urbana-Champaign (NCSA) to run complex simulations of black holes.

“My first time using Blue Waters, we did a tour first and got to see the computer, which is a very amazing thing because it’s a very powerful machine,” Rebei told the NCSA, “and I just remember thinking, ‘All of the GPUs!’ It’s an insane amount of GPUs, and I’ve never seen anything like it.”

To get there, Rebei first took an astronomy class that led him to his work with the NCSA. Once there, he teamed up with research scientist Eliu Huerta, who leads the group’s Gravity Group.

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May 17, 2019

Did ‘The Big Bang Theory’ Get the Science Right? A Lesson in Supersymmetry and Economy Class

Posted by in categories: cosmology, economics, physics, science

Is super asymmetry a thing? And do big physicists really travel economy class?

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May 17, 2019

Quantum black hole study opens bridge to another universe

Posted by in categories: cosmology, quantum physics

Circa 2013

Physicists have long thought that the singularities associated with gravity (like the inside of a black hole) should vanish in a quantum theory of gravity. It now appears that this may indeed be the case. Researchers in Uruguay and Louisiana have just published a description of a quantum black hole using loop quantum gravity in which the predictions of physics-ending singularities vanish, and are replaced by bridges to another universe.

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May 17, 2019

Physicists Think You Could Be Rescued from a Black Hole — But Don’t Risk It

Posted by in categories: cosmology, quantum physics

DENVER — Researchers have developed a new, unspeakably dangerous, and incredibly slow method of crossing the universe. It involves wormholes linking special black holes that probably don’t exist. And it might explain what’s really going on when physicists quantum-teleport information from one point to another — from the perspective of the teleported bit of information.

Daniel Jafferis, a Harvard University physicist, described the proposed method at a talk April 13 here at a meeting of the American Physical Society. This method, he told his assembled colleagues, involves two black holes that are entangled so that they are connected across space and time.

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May 17, 2019

Computronium universe – computation limits of computronium and limits to the universe

Posted by in categories: cosmology, Ray Kurzweil

Ray Kurzweil discusses having a universe filled with Computronium.

He discusses this happening within 200 years if wormholes or some other means allow faster than light travel.

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May 17, 2019

From the Farside –“Ripples in Spacetime Created By Wormholes Leading to Another Universe”

Posted by in categories: cosmology, physics

In June of 2018 we posted that a team of physicists explored the possibility that the black holes we ‘observe’ in nature are no such thing, but rather some type of exotic compact objects (ECOs) that do not have an event horizon. The scientific collaborations LIGO and Virgo have detected gravitational waves from the fusions of two black holes, inaugurating a new era in the study of the cosmos. But what if those ripples in space-time were produced wormholes that can be traversed to appear in another universe.

“Wormholes do not have an event horizon, but act as a space-time shortcut that can be traversed, a kind of very long throat that takes us to another universe,” says Pablo Bueno from KU Leuven University (Belgium). “The confirmation of echoes in the LIGO or Virgo signals would be a practically irrefutable proof that astrophysical black holes don’t exist. Time will tell if these echoes exist or not. If the result were positive, it would be one of the greatest discoveries in the history of physics.”

“Dark Hearts of the Cosmos” –Dazzling New Mergers of Black Holes and Neutron Stars Announced

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May 16, 2019

A “Dense Bullet of Something” Blasted Holes in the Milky Way

Posted by in category: cosmology


Scientists say that something mysterious punched gigantic, cosmic “bullet holes” in parts of the Milky Way.

There’s a string of holes in a long stream of stars called GD-1 that suggests that some yet-undiscovered thing blasted its way through, according to research presented to the American Physical Society last month and first reported by Live Science. Harvard-Smithsonian astrophysicist Ana Bonaca, the scientist who discovered the cosmic crime scene, suspects that the gigantic “bullet holes” may have been carved out by invisible dark matter.

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