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Archive for the ‘cosmology’ category: Page 287

Mar 17, 2019

Astronomers have discovered hundreds of thousands of new galaxies in a tiny section of the universe

Posted by in category: cosmology

Over 200 experts worked on developing the new radio telescope, which is exploring space in a entirely new way.


  • According to an Astronomy & Astrophysics press release, astronomers from 18 countries have discovered hundreds of thousands of previously unknown galaxies.
  • Over 200 experts worked on developing the new radio telescope, which will explore space in a entirely new way.
  • The telescope’s capabilities may also allow the researchers to delve further into the behaviour of black holes.

According to preliminary findings in a study published in Astronomy & Astrophysics, scientists have recently discovered hidden galaxies in our universe — and they’ve found hundreds of thousands of them.

Together, over 200 experts across 18 different countries have developed a new radio telescope that will explore space in a completely new way.

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Mar 16, 2019

Astronomers discover 83 supermassive black holes at the edge of the universe

Posted by in category: cosmology

A team of international astronomers have been hunting for ancient, supermassive black holes — and they’ve hit the motherlode.


Lurking in the distant corners of space are 83 monster black holes that can teach us about the early days of the cosmos.

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Mar 15, 2019

This Is Why The Multiverse Must Exist

Posted by in categories: cosmology, quantum physics

If you accept cosmic inflation and quantum physics, there’s no way out. The Multiverse is real.

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Mar 12, 2019

The Physics Still Hiding in the Higgs Boson

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

But no other new particles have materialized at the LHC, leaving open many mysteries about the universe that the Standard Model doesn’t address. A debate has ensued over whether to build an even more enormous successor to the LHC — a proposed machine 100 kilometers in circumference, possibly in Switzerland or China — to continue the search for new physics.

Physicists say there’s much we can still learn from the Higgs boson itself. What’s known is that the particle’s existence confirms a 55-year-old theory about the origin of mass in the universe. Its discovery won the 2013 Nobel Prize for Peter Higgs and François Englert, two of six theorists who proposed this mass-generating mechanism in the 1960s. The mechanism involves a field permeating all of space. The Higgs particle is a ripple, or quantum fluctuation, in this Higgs field. Because quantum mechanics tangles up the particles and fields of nature, the presence of the Higgs field spills over into other quantum fields; it’s this coupling that gives their associated particles mass.

But physicists understand little about the omnipresent Higgs field, or the fateful moment in the early universe when it suddenly shifted from having zero value everywhere (or in other words, not existing) into its current, uniformly valued state. That shift, or “symmetry-breaking” event, instantly rendered quarks, electrons and many other fundamental particles massive, which led them to form atoms and all the other structures seen in the cosmos.

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Mar 12, 2019

Stephen Hawking’s legacy will be honoured with a new 50p coin

Posted by in category: cosmology

A new 50p coin will memorialise Stephen Hawking, who died last year, while paying respect to his groundbreaking research on black holes.

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Mar 12, 2019

“HD 140283” a star older than the Universe

Posted by in category: cosmology

The age our universe is about 3.8 billion years which was formed after big bang. But we discovered a star named HD 140283 found to be older than the universe.

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Mar 9, 2019

CERN Creates Antimatter to Answer Fundamental Question of Universe

Posted by in categories: cosmology, nuclear energy, particle physics

The concept of antimatter has delighted sci-fi fans for years, but it also poses a real question for physicists. Mathematically speaking, it makes sense that for every type of particle in our universe there exists a corresponding antiparticle which is the same but with the opposite charge — so to correspond with the electron, for example, there should be an antielectron, also known as a positron. When antimatter and matter come into contact, they both destroy each other in a flash of energy.

When the Big Bang happened, it should have created equal amounts of both matter and antimatter. And yet matter is everywhere and there is hardly any antimatter in our universe today. Why is that?

A new experiment from CERN, the European Organization for Nuclear Research, has been tackling the question by looking at how matter and antimatter could react differently to Earth’s gravitational field. Physicists think that antimatter could fall at a different rate than matter, which would help to explain why it is less prevalent. But in order to test this, they need to create antimatter particles such as positronium atoms. These are pairs of one electron and one positron, but they only live for a fraction of a second — 142 nanoseconds to be exact — so there isn’t enough time to perform experiments on them.

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Mar 7, 2019

Physicists Want to Use Quantum Particles to Find Out What Happens Inside a Black Hole

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

A new method for analysing the entanglement of scrambled particles could tell us how the Universe still keeps track of information contained by particles that disappear into black holes. It won’t get our quantum information back, but it might at least tell us what happened to it.

Physicists Beni Yoshida from the Perimeter Institute in Canada and Norman Yao from the University of California, Berkeley, have proposed a way to distinguish scrambled quantum information from the noise of meaningless chaos.

While the concept promises a bunch of potential applications in the emerging field of quantum technology, it’s in understanding what’s going on inside the Universe’s most paradoxical places that it might have its biggest pay-off.

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Mar 6, 2019

Can entangled qubits be used to probe black holes?

Posted by in categories: computing, cosmology, quantum physics

Physicists have used a seven-qubit quantum computer to simulate the scrambling of information inside a black hole, heralding a future in which entangled quantum bits might be used to probe the mysterious interiors of these bizarre objects.

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Mar 5, 2019

How Much Of The Unobservable Universe Will We Someday Be Able To See?

Posted by in category: cosmology

As more time passes since the Big Bang, more of the Universe comes into view. But how much?

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