Menu

Blog

Archive for the ‘cosmology’ category: Page 221

Dec 5, 2018

Bringing balance to the universe: New theory could explain missing 95 percent of the cosmos

Posted by in categories: cosmology, physics

Scientists at the University of Oxford may have solved one of the biggest questions in modern physics, with a new paper unifying dark matter and dark energy into a single phenomenon: a fluid which possesses ‘negative mass.” If you were to push a negative mass, it would accelerate towards you. This astonishing new theory may also prove right a prediction that Einstein made 100 years ago.

Our current, widely recognised model of the Universe, called LambdaCDM, tells us nothing about what dark and dark are like physically. We only know about them because of the gravitational effects they have on other, observable matter.

This , published today in Astronomy and Astrophysics, by Dr. Jamie Farnes from the Oxford e-Research Centre, Department of Engineering Science, offers a new explanation. Dr. Farnes says: “We now think that both dark matter and dark energy can be unified into a fluid which possesses a type of ‘negative gravity,” repelling all other material around them. Although this matter is peculiar to us, it suggests that our cosmos is symmetrical in both positive and negative qualities.”

Read more

Dec 5, 2018

Scientists’ collection of gravitational waves just got a lot bigger

Posted by in categories: cosmology, physics

The biggest black hole merger yet seen created one set of the spacetime ripples.

Read more

Dec 4, 2018

Physicists Have Announced The Discovery Of Four Black Hole Mergers After Observation Of Gravitational Waves

Posted by in categories: cosmology, physics

Physicists creating the Gravitational Wave Transient Catalog have discovered four new black hole mergers through the detection of gravitational waves.

Over the weekend in Maryland, physicists involved in the Virgo and LIGO project made the exciting announcement that they had discovered four completely new black hole mergers which came about after gravitational waves were detected around these black holes. This includes what is thought to be the largest black hole collision that we currently know about, which occurred a whopping 5 billion years ago. This monstrous collision created a black hole so big that it is 80 times larger than the sun.

As Ars Technica reports, the four new black hole mergers that have been discovered will be included in a very special piece of research known as the Gravitational Wave Transient Catalog, or GWTC-1, whose aim will be to report on gravitational wave events like these and document them thoroughly. Including the four new black hole mergers that were just detected, there will now be 11 gravitational wave events to catalog.

Continue reading “Physicists Have Announced The Discovery Of Four Black Hole Mergers After Observation Of Gravitational Waves” »

Dec 3, 2018

Scientists Just Made a Major Discovery

Posted by in categories: cosmology, physics

This discovery could help us answer some of the largest conundrums in physics today. Scientists know that matter and antimatter were created in about equal proportions after the Big Bang, as the universe cooled and expanded, but they can’t explain the asymmetry of matter and antimatter, or why antimatter, which annihilates anything it comes into contact with, didn’t just wipe out all matter.

“[W]e have yet to answer a central question of why didn’t matter and antimatter, which it is believed were created in equal amounts when the Big Bang started the Universe, mutually self-annihilate?” co-author Professor Mike Charlton said to Sci-News. “We also have yet to address why there is any matter left in the Universe at all. This conundrum is one of the central open questions in fundamental science, and one way to search for the answer is to bring the power of precision atomic physics to bear upon antimatter.”

Read more

Dec 3, 2018

Monster black hole merger detected

Posted by in categories: cosmology, physics

Laser labs sense gravitational waves from a black hole collision at least five billion light-years away.

Read more

Dec 3, 2018

What Happens When Two Black Holes Collide?

Posted by in category: cosmology

On September 14, 2015, signals from one of the Universe’s most mind-boggling, powerful events produced the tiniest signal in a pair of detectors, one in Louisiana and one in Washington state. They’d detected two already-wild objects, black holes, slamming into one another.

You’re probably familiar with black holes as cosmic vacuum cleaners, but they’re a little bit more complex than that. One core takeaway of Einstien’s theory of gravity is that heavy enough things actually change the shape of the space around them, and gravity is how we experience this warping. Black holes are regions of space so small and massive that they carry a point-of-no-return, an “event horizon” beyond which space is so warped that every path that anything could travel leads to the black hole’s middle. Nothing, not even light, can escape.

Read more

Dec 2, 2018

Black hole BREAKTHROUGH: Scientists ‘REWRITE astronomy textbooks’ with space discovery

Posted by in categories: cosmology, innovation

BLACK holes are the most mysterious objects in the universe, but scientists have come one small step closer to understanding the impossibly powerful phenomena.

Read more

Dec 2, 2018

Newest Atomic Clocks Can Detect The Gravitational Distortions Of Time Itself

Posted by in category: cosmology

Scientists have now constructed atomic clocks so precise and sensitive that they can measure the gravitational distortion of spacetime and may even help solve the mystery of dark matter.

The latest experimental atomic clocks at the National Institute of Standards and Technology (NIST) are doing their bit to improve timekeeping and navigation, but they’ve also gone much further. They can detect faint signals from gravity and the early Universe and perhaps even dark matter.

The two clocks have smashed records for systematic uncertainty, stability and reproducibility, making them top-performing timepieces.

Read more

Dec 2, 2018

World-Renowned Physicist Explains How Our Universe Will End

Posted by in category: cosmology

It started with a Big Bang, but will it end as suddenly?

Read more

Dec 1, 2018

New Research Could Rewrite Physics From the Ground Up

Posted by in categories: cosmology, particle physics

Four researchers came together to propose the addition of six novel particles to tackle five enduring issues within the current Standard Model Theory. This new proposed model, detailed in APS Physics, is named SMASH for “Standard Model Axion See-saw Higgs portal inflation.” The team proposed that particles rho and axion could explain inflation and dark matter respectively, along with three heavy right-handed neutrinos.

With these findings, the researchers hope to answer the following questions about the Standard Model:

Continue reading “New Research Could Rewrite Physics From the Ground Up” »