News About Time And Space
August 18, 2016
Link Between Primordial Black Holes and Dark Matter
Greenbelt MD (SPX) May 26, 2016
Dark matter is a mysterious substance composing most of the material universe, now widely thought to be some form of massive exotic particle. An intriguing alternative view is that dark matter is made of black holes formed during the first second of our universe's existence, known as primordial black holes. Now a scientist at NASA's Goddard Space Flight Center in Greenbelt, Maryland, suggests that this interpretation aligns with our knowledge of cosmic infrared and X-ray background glows and may explain ... read more

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1400 km of optical fiber connect optical clocks in France and Germany
In the past few years, optical atomic clocks have made spectacular progress, becoming 100 times more precise than the best caesium clocks. So far, their precision has been available only locally, si ... more
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UCI physicists confirm possible discovery of fifth force of nature
Recent findings indicating the possible discovery of a previously unknown subatomic particle may be evidence of a fifth fundamental force of nature, according to a paper published in the journal Phy ... more
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Much ado about nothing: Astronomers use empty space to study the universe
Researchers who are looking for new ways to probe the nature of gravity and dark energy in the universe have adopted a new strategy: looking at what's not there. In a paper to appear in upcomi ... more
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A Black Hole Story Told by a Cosmic Blob and Bubble
Two cosmic structures show evidence for a remarkable change in behavior of a supermassive black hole in a distant galaxy. Using data from NASA's Chandra X-ray Observatory and other telescopes, astro ... more
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Cosmic blob and bubble tell story of supermassive black hole
Two structures in a faraway galaxy, a cosmic blob and a gas bubble, are helping scientists understand the history of a supermassive black hole. It's an exercise in detective work researchers hope could be used to probe the evolution of other black holes. ... more
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Do Black Holes Have a Back Door
One of the biggest problems when studying black holes is that the laws of physics as we know them cease to apply in their deepest regions. Large quantities of matter and energy concentrate in an inf ... more
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Chorus of Black Holes Sings in X-Rays
Supermassive black holes in the universe are like a raucous choir singing in the language of X-rays. When black holes pull in surrounding matter, they let out powerful X-ray bursts. This song of X-r ... more
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The discovery of new emission lines from highly charged heavy ions
Professors Chihiro Suzuki and Izumi Murakami's research group at the National Institute for Fusion Science, together with Professor Fumihiro Koike of Sophia University, injected various elements wit ... more
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Bump in LHC data is not a new particle, scientists announce
Physicists who thought they discovered a new particle, which would explain holes in theories of how the universe works, announced at a conference Friday that they were wrong. ... more
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Bridging the gap between the quantum and classical worlds
In the quantum world, physicists study the tiny particles that make up our classical world - neutrons, electrons, photons - either one at a time or in small numbers because the behaviour of the part ... more
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Proton pinball on the catalyst
The function of fuel cells is to transform chemical energy into electricity through a chemical reaction. When this technology is mature enough it will be possible to use a fuel like hydrogen without ... more
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Scientists model the 'flicker' of gluons in subatomic smashups
Scientists exploring the dynamic behavior of particles emerging from subatomic smashups at the Relativistic Heavy Ion Collider are increasingly interested in the role of gluons. These glue-like part ... more
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PPPL applies quantum theory and Einstein's special relativity to plasma physics
Among the intriguing issues in plasma physics are those surrounding X-ray pulsars - collapsed stars that orbit around a cosmic companion and beam light at regular intervals, like lighthouses in the ... more
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Knots in chaotic waves
New research, using computer models of wave chaos, has shown that three-dimensional tangled vortex filaments can in fact be knotted in many highly complex ways. The computer experiments, by ac ... more
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Ancient eye in the sky
Light from a distant galaxy can be strongly bent by the gravitational influence of a foreground galaxy. That effect is called strong gravitational lensing. Normally a single galaxy is lensed at a ti ... more
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Chorus of Black Holes Sings in X-Rays
Supermassive black holes in the universe are like a raucous choir singing in the language of X-rays. When black holes pull in surrounding matter, they let out powerful X-ray bursts. This song of X-r ... more
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International team of scientists unveils fundamental properties of spin Seebeck effect
Thermoelectric effects are a fundamental building block for the conception and development of new processes for information processing. They enable to re-use waste heat obtained in different process ... more
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Physicist offers leading theory about mysterious Large Hadron Collider excess
In December of last year, scientists at the Large Hadron Collider in Europe announced startling results hinting at the existence of an undiscovered subatomic particle - one with a mass six times hea ... more
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Supermassive and Supersonic - Black Hole Studied with Sardinia Radio Telescope
Using the brand-new Sardinia Radio Telescope (SRT), a giant parabolic dish of 64 meters diameter, a team of astronomers from the Italian National Institute for Astrophysics (INAF) and the University ... more
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Mapping electromagnetic waveforms
Munich physicists have developed a novel electron microscope that can visualize electromagnetic fields oscillating at frequencies of billions of cycles per second. Temporally varying electroma ... more
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Australian physicists revisit spin-bowling puzzle
Latest calculations reveal why small variations in the rotation of the ball applied by slow bowlers in cricket can cause batsmen big problems even before deliveries have pitched on the ground ... more
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Scribbles found to be Leonardo da Vinci's earliest notes on laws of friction
Scribbled pages in a notebook of Leonardo da Vinci, previously dismissed as nonsense, have been revealed as the polymath's earliest musings on the laws of friction. ... more
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Black Hole Makes Material Wobble Around It
The European Space Agency's orbiting X-ray observatory, XMM-Newton, has proved the existence of a "gravitational vortex" around a black hole. The discovery, aided by NASA's Nuclear Spectroscopic Tel ... more
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New Yale-developed device lengthens the life of quantum information
Yale University scientists have reached a milestone in their efforts to extend the durability and dependability of quantum information. For the first time, researchers at Yale have crossed the ... more
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