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Showing posts with the label AstroPhysics

What is cause of dark energy and matter..

What are the causes of dark matter and dark energy? “Dark matter” and dark energy are both caused by invisible neutrinos and neutrino-like predicted symmetric particles, that have negative gravity. The negative gravity of dark energy neutrinos primarily causes the outward accelerated expansion of our universe. Secondarily they also cause the inward acceleration of gravitationally bound galaxies, attributed to the nonexistent “dark matter.” For more on the unified cause of dark energy and dark matter, please see my answer below to the following question: What are the most prevalent current hypotheses concerning dark matter and dark energy? Unfortunately there are no  prevalent  good hypothesis or theories concerning dark matter or dark energy. Physicists are at a roadblock, looking for dark matter WIMPS that don’t exist; and stuck on the rejected by Einstein “cosmological constant” that would blow up our universe in a “big rip.” But there is an excellent well researc...

Why it takes small time to reach somewhere with high velocity. [Distance Contraction]

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Ever wondered, that why when you move fast you reach your destination early? The reason is obvious as v=s/t and as v(velocity) increases time shortens for a  fixed distance. But when you move in space free from any planetary interaction than something strange is observed. ""YOU REACH YOUR DESTINATION EARLIER THAN EXPECTED"" That's the time when special relativity comes into effect. As an object moves with great speed in space it pushes the space back, folding it, just as if you were moving on a carpet folding it back as you move. This brings your destination closer to you thus reducing the s in the equation v=s/t and with greater "v", "s" decreases so as the distance is no more fixed this equation is no more applicable. "t" calculated is greater in magnitude than actual time taken. That was Distance contraction for you in short.

What will happen when our sun dies?

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What will happen when our sun dies? What does death mean, for the sun? It means our sun will run out of fuel in its interior. It’ll cease the internal  thermonuclear reactions  that enable stars to shine. It’ll swell into a  red giant , whose outer layers will engulf Mercury and Venus and likely reach the Earth. Life on Earth will end. If the sun were more massive – estimates vary, but at least several times more massive – it would explode as a supernova. So … no supernova. But what? What happens next? An international team of astronomers recently used a new stellar data-model that predicts the life cycle of stars to answer this question. Their research  is published in the  peer-reviewed  journal  Nature Astronomy . It suggests that the sun is almost exactly the lowest mass star that – at the end of its life – produces a visible, though faint,  planetary nebula . Artist’s concept of our sun as a red giant. Image via  Chandra X-r...

Muons spin tales of undiscovered particles

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Muons spin tales of undiscovered particles We are providing you a link to the original document from phys.org . You can view original document  here . Hope you like it. To join us as an author you can contact us at scitechrevel@gmail.com .

Alien life maybe sending signals but dark matter is making us blind to signs

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Alien life maybe sending signals but dark matter is making us blind to signs:  What if intelligent alien life is sending us signals but our finite understanding of dark matter and energy may be making us blind to the signals which perhaps exist in dimensions that humans can't comprehend? When we think of other intelligent beings, we tend to see them from our perceptive and conscience sieve; however we are limited by our sui generis (unique) vision of the world, and its hard for us to admit it. - Gabriel de la Torre, from the University of Cadiz in Spain Gabriel talked about contemplating on other possibilities. What we are trying to do with this differentiation is to contemplate other possibilities, for example, beings of dimensions that our mind cannot grasp; or intelligences based on dark matter or energy forms, which make up almost 95 per cent of the universe and which we are only beginning to glimpse. - Gabriel de la Torre CONDUCTING EXPERIMENTS The re...

The Alien Planets of TRAPPIST-1 May Be Too Wet for Life

Hey there we have a great news from Space.com you must see it !!! Tell me what you think about this in comments below.

This Weird Google Earth Picture Does Not Show a Crashed UFO

Hey guys, We are enclosing here a link  from space.com

Starquakes Are Real, and They're Seriously Violent

Starquakes Are Real, and They're Seriously Violent Hey there, we have an another quick fact about "stars" here from curiosity.com!!! ENJOY

What are Quasars

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Quasar With the exception of the short-lived, powerful explosions responsible for  supernovae  and  gamma-ray bursts ,  quasars  (or  QSO s) are the brightest objects in the  Universe . They are thought to be powered by  supermassive black holes  (black holes with a  mass  of more than one billion  solar masses ) which lie at the center of massive  galaxies . However, the black holes themselves do not emit visible or radio  light  (i.e. they are “black”) – the light we see from quasars comes from a disk of gas and  stars  called an accretion disk, which surrounds the  black hole . Intense heat and light is emitted from this accretion disk, caused by friction produced from the material swirling around, and eventually into, the black hole. Quasars are typically more than 100 times brighter than the galaxies which host them! Quasars also emit  jets  from their central regions, w...

Quasar outflows may create molecules, as well as destroying them

Quasar outflows may create molecules, as well as destroying them!!! Some types of molecules could form in powerful quasar winds that would ordinarily blast molecules to bits, according to astrophysicists in the US. Their findings, based on computer simulations of the outflows, show that feedback in active galaxies is more complex than had been thought. Quasars are powered by spiralling discs of gas around a supermassive black hole. The gas in the disc is at billions of degrees and drives powerful winds of radiation that move out into the host galaxy at hundreds of kilometres per second, sweeping up molecular gas that could otherwise be used for star formation. Under normal circumstances, this molecular gas should be blasted into its atomic constituents by the outflow radiation. However, observations of quasars have revealed unexpected molecular gas, including carbon monoxide, hydroxyl and warm molecular hydrogen, in the outflows. Now  Alexander Richings  and  C...

In the future, an AI may diagnose eye problems

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In the future, an AI may diagnose eye problems The computer will see you now. Artificial intelligence algorithms may soon bring the diagnostic know-how of an eye doctor to primary care offices and walk-in clinics, speeding up the detection of health problems and the start of treatment, especially in areas where specialized doctors are scarce. The first such program — trained to spot symptoms of diabetes-related vision loss in eye images — is pending approval by the U.S. Food and Drug Administration. While other already approved AI programs help doctors examine medical images, there’s “not a specialist looking over the shoulder of [this] algorithm,” says Michael Abràmoff, who founded and heads a company that developed the system under FDA review, dubbed IDx-DR. “It makes the clinical decision on its own.” IDx-DR and similar AI programs, which are learning to predict everything from age-related sight loss to heart problems just by looking at eye images, don’t follow preprogramm...

50 years ago, pulsars burst onto the scene

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50 years ago, pulsars burst onto the scene The strangest signals reaching Earth The search for neutron stars has intensified because of a relatively small area, low in the northern midnight sky, from which the strangest radio signals yet received on Earth are being detected. If the signals come from a star, the source broadcasting the radio waves is very likely the first neutron star ever detected. —  Science News ,  March 16, 1968 That first known neutron star’s  odd pulsating signature  earned it the name “pulsar.” The finding garnered a Nobel Prize just six years after its 1968 announcement — although one of the pulsar’s discoverers, astrophysicist Jocelyn Bell Burnell, was famously excluded. Since then, astronomers have found thousands of these blinking collapsed stars, which have confirmed  Einstein’s theory of gravity  and have been proposed as a kind of  GPS for spacecraft  

Some meteorites contain superconducting bits

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Some meteorites contain superconducting bits In the search for new superconductors, scientists are leaving no stone — and no meteorite — unturned. A team of physicists has now found the unusual materials, famous for their ability to conduct electricity without resistance, within two space rocks. The discovery implies that small amounts of superconducting materials might be relatively common in meteorites, James Wampler of the University of California, San Diego, said March 6 at a meeting of the American Physical Society. While the superconducting materials found weren’t new to science, additional interplanetary interlopers might harbor new, more technologically appealing varieties of superconductors, the researchers suggest. Superconductors could potentially beget new, energy-saving technologies, but they have one fatal flaw: They require very cold temperatures to function, making them impractical for most uses. So scientists are  on the hunt for new types of supercond...

Nasa reveals latest pictures of Jupiter

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In this composite image, derived from data collected by the Jovian Infrared Auroral Mapper (JIRAM) instrument aboard NASA's Juno mission to Jupiter, shows the central cyclone at the planet's north pole and the eight cyclones that encircle it  Nasa Jupiter is covered in intense, massive storms far more complex than anyone had expected, Nasa has revealed. The geometric clusters of cyclones that cover the planet's poles are just one of the various discoveries reported by scientists studying data sent back from Nasa's Juno spacecraft, which is circling the planet. The team has seen the cyclones churning in Jupiter's deep atmosphere in far greater detail than ever before One group uncovered a constellation of nine cyclones over Jupiter's north pole and six over the south pole. The wind speeds exceed Category 5 hurricane strength in places, reaching 220 mph (350 kph).  The massive storms haven't changed position much — or merged — since ob...

Best astronomy and AstroPhysics Books.

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The universe through the eyes of an astronomer or astrophysicist is a fascinating place — and a good book can give you a glimpse of that world without requiring years of study. Here are some recommendations of astronomy and astrophysics books that will thrill, puzzle, intrigue and blow your mind. What We're Reading: 'The Planet Factory' (Bloomsbury Sigma, 2017) By Elizabeth Tasker "The Planet Factory" (Bloomsbury Sigma, 2017) by Elizabeth Tasker Credit: Bloomsbury Sigma In her new book "The Planet Factory: Exoplanets and the Search for a Second Earth," astrophysicist Elizabeth Tasker explores what scientists currently know about the mysterious distant planets beyond the solar system. The refreshing tone of her narrative takes readers on a journey through old techniques for spotting exoplanets (some of which were quite dangerous), the oblong orbits of some alien planets, and why the "habitable zone" of a planet does little to...