Archive for the ‘cosmology’ category

Sep 12, 2017

UV emission linked to Supernova explosion mechanism

Posted by in category: cosmology

Supernovae are an explosion of a massive supergiant star which may shine with the brightness of 10 billion suns! The study of these phenomena has unlocked mysteries about black holes, the origin of metals such as gold and the dynamic of the universe. Supernovae are rare — the last supernova seen in our galaxy was recorded in 1604, according to NASA. However, the Universe is large and astronomers estimated that one of the Milky Way’s massive stars explodes about every 50 years on average [1].

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Sep 7, 2017

What would happen if you fell into a black hole

Posted by in category: cosmology

Two possibilities.

(Via Hashem Al-Ghaili)

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Aug 31, 2017

Does Dark Energy Change Over Time?

Posted by in category: cosmology

Scientists are considering whether the mysterious “force” accelerating the universe’s expansion changes with time.

Of late there’s been some scientific ado over a small but notable conflict in measurements of the universe’s expansion rate. The present rate, called the Hubble constant or H0 (pronounced “H-naught”), connects the redshift in an object’s spectra to its physical distance. It also tells us the universe’s age and size, as well as the density required to make the universe geometrically flat.

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Aug 28, 2017

Black hole models contradicted by hands-on tests

Posted by in category: cosmology

A long-standing but unproven assumption about the X-ray spectra of black holes in space has been contradicted by hands-on experiments performed at Sandia National Laboratories’ Z machine.

Z, the most energetic laboratory X-ray source on Earth, can duplicate the X-rays surrounding black holes that otherwise can be watched only from a great distance and then theorized about.

“Of course, emission directly from black holes cannot be observed,” said Sandia researcher and lead author Guillaume Loisel, lead author for a paper on the experimental results, published in August in Physical Review Letters. “We see emission from surrounding matter just before it is consumed by the black hole. This surrounding matter is forced into the shape of a disk, called an accretion disk.”

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Aug 9, 2017

Scientists: The Big Bang May Have Actually Been the ‘Big Bounce’

Posted by in category: cosmology

A team of physicists from the UK and Canada have provided a simulation that supports the theory that our universe did not start out the way the Big Bang model proposes, but rather expanded to its current state after a period of contraction—a cycle dictated by the Big Bounce Theory.

The Big Bounce theory states that the universe follows a cycle of contraction and expansion, repeated infinitely. According to this theory, the universe did not begin with a violent explosion, but rather formed as a previous universe expanded or “bounced” back collapsing during the contraction phase of this endless cycle.

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Aug 6, 2017

A Powerful Energy Beam in Space Seems to Exceed the Speed of Light

Posted by in categories: cosmology, physics

Strange beams of plasma that have been observed that seem to defy the laws of physics by moving faster than the speed of light.

In the Galaxy M87 (which was created when two other galaxies merged), a jet of hot plasma — caused by gas being sucked into a central black hole, being heated, and then shot out by magnetic fields — has been helping us gain insight into the weird origins of our galaxy. It is shaped like a thin beam and is emitted from the center of a black hole.

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Aug 2, 2017

How the possibility of wormholes linking quantum-entangled black holes could be tested in the laboratory

Posted by in categories: cosmology, quantum physics

A new paper shows

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Jul 7, 2017

A Black Hole Engine to Power a Starship

Posted by in categories: cosmology, space travel

Two scientists have laid out the basic technical specifications of a black hole powered starship.

Credit: SpaceRip

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Jun 17, 2017

Parallel Realities, The Multiverse And Consciousness

Posted by in categories: cosmology, robotics/AI

I have had this theory for a while and it fits my simulation theory but now seems like the perfect time to discuss it, given the research and findings from the Blue Brain Project. Please send me an email after reading this and let me know what you think of it? Thanks.

My Theory


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Jun 12, 2017

Faux particles commit physics faux pas

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

“For example, Hasan says, “we can test theoretical ideas in the early universe,” simulating how particles may have behaved just after the Big Bang, when Lorentz symmetry may not have been obeyed.”

It’s interesting how often I hear condensed matter physicists justify their work by saying “might be important for something with quantum gravity” while condensed matter physics by itself is much more likely than quantum gravity to be good for something.

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