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Archive for the ‘cosmology’ category: Page 313

Dec 10, 2019

Dark-matter engines

Posted by in categories: cosmology, entertainment

These could definitely exist and their fuel is everywhere.


The dark-matter engines are engines created by Professor Farnsworth for the Planet Express ship. Fueled by dark matter, the engines allow the ship to travel vast distances very quickly by moving the universe around the ship (rather than the ship around the universe). The Professor also has an emergency engine, though he may have pawned it. As of Bender’s Game these have been converted to use whale oil.

Dec 10, 2019

The X17 factor: A particle new to physics might solve the dark matter mystery

Posted by in categories: cosmology, particle physics

A team of scientists in Hungary recently published a paper that hints at the existence of a previously unknown subatomic particle. The team first reported finding traces of the particle in 2016, and they now report more traces in a different experiment.

If the results are confirmed, the so-called X17 particle could help to explain dark matter, the mysterious substance scientists believe accounts for more than 80% of the mass in the universe. It may be the carrier of a “fifth force” beyond the four accounted for in the standard model of physics (gravity, electromagnetism, the weak nuclear force and the strong nuclear force).

Dec 10, 2019

This Is How Astronomers Know The Age Of The Universe (And You Can, Too)

Posted by in category: cosmology

The hot Big Bang occurred 13.8 billion years ago, and there’s no other possible answer consistent with what we know today.

Dec 7, 2019

Have Scientists Cracked One Of The Biggest Mysteries Of Modern Physics?

Posted by in categories: cosmology, particle physics

So where did the antimatter go?

This question is one of the biggest mysteries of modern science, and the answer is unknown. Something happened in the earliest moments of the universe to make the antimatter disappear. From our best current measurements of the primordial radiation of the Big Bang (called the cosmic microwave background radiation, or CMB), something tilted the scales in favor of matter, with the ratio of for every three billion antimatter particles, there were three billion and one matter particles. The two sets of three billions cancelled and made the CMB, and the remaining tiny amount of matter went on to form the stars and galaxies that we see in our telescopes today. For this to happen, some physical process had to favor matter over antimatter.

Continue reading “Have Scientists Cracked One Of The Biggest Mysteries Of Modern Physics?” »

Dec 7, 2019

Black holes formed from dark matter could be making dead stars explode

Posted by in category: cosmology

White dwarfs are burnt out stars that can explode into supernovae, and this process might be kicked off by a black hole made of dark matter in the heart of the star.

Dec 6, 2019

Will We Ever Find Dark Matter?

Posted by in category: cosmology

The failed hunt for elusive dark matter means that we may have to rethink our hypotheses.

Dec 5, 2019

The universe tends towards disorder. But how come nobody knows why?

Posted by in categories: cosmology, quantum physics

Entropy is the physicist’s magic word, invoked to answer to some of the biggest questions in cosmology. Yet a quantum rethink may be needed to tell us what it actually is.

Dec 4, 2019

The Pure Chaos of Magnetic Fields May Explain The Intense Shine of Black Holes

Posted by in category: cosmology

There’s some irony in the fact that the darkest objects in the sky — black holes — can be responsible for some of the Universe’s brightest light. Simulations of the magnetic fields surrounding black holes and neutron stars have now provided new insights into their astonishing brilliance.

Astrophysicists from Columbia University in New York have developed a model that shows how electrons taking a cosmic roller coaster-ride through magnetic turbulence can generate surprisingly energetic waves of radiation.

Applied to the swirling chaos surrounding dense objects such as black holes, it helps to explain why we see them glow with a ferocity that so far defies explanation.

Dec 3, 2019

Long Live the Multiverse!

Posted by in category: cosmology

The idea that our universe is just part of a much vaster cosmos has a long history—and it’s still very much with us.

Dec 3, 2019

We may finally know the answer to the biggest question, what happened before the Big Bang?

Posted by in categories: cosmology, evolution

The current Lambda CDM model may explain a great deal about the evolution and the chronology of the events that occurred in our Universe but it doesn’t paint the complete picture.

We know of the cosmic inflation that happened followed by the Big Bang itself however how these two are coherently connected has so far defied all our attempts to explain.

During the inflationary period, within less than a trillionth of a second, our universe grew from an infinitesimal point to an octillion (that’s 1 followed by 27 zeroes) times in size, which was followed by a more conventional and gradual period of expansion, nevertheless violent by our standards, which we know as the Big Bang.