Black Holes

Is Dark Matter Just Black Holes Made During The Big Bang?

Stephen Hawking once proposed that unseen “primordial” black holes might be the hidden dark matter. A series of new studies shows how it can work.
Related topics: Big Bang, Stephen Hawking

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The Shadow From M87’s Supermassive Black Hole Has Been Observed Wobbling Around The Galaxy For...

Over the past decade, the shadow of a black hole in M87 has been wobbling, which tells us about how matter behaves near a black hole. The post The Shadow from M87’s Supermassive Black Hole has Been Observed Wobbling Around the Galaxy for Years...
Related topics: Galaxies, Space

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Physicists Develop A Method To Improve Gravitational Wave Detector Sensitivity

Gravitational wave detectors have opened a new window to the universe by measuring the ripples in spacetime produced by colliding black holes and neutron stars, but they are ultimately limited by quantum fluctuations induced by light reflecting off...
Related topics: Physics, Neutron Stars, Quantum

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The First-ever Image Of A Black Hole Is Now A Movie — Literally

Over a year ago, a group of researchers made a revolutionary breakthrough when they successfully captured the first-ever image of a celestial phenomenon — a black hole. Well, that historic image has now been turned into a movie. The short sequence...

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Insight-hxmt Discovers Closest High-speed Jet To Black Hole

Insight-HXMT, China's first space X-ray astronomical satellite, has discovered a low-frequency quasi-periodic oscillation (QPO) above 200 kiloelectron volts (keV) in a black hole binary, making it the highest energy low-frequency QPO ever found. The...
Related topics: Space, Satellites, Scientific Discoveries

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Cosmic X-rays Reveal A Distinct Signature Of Black Holes

An international team of astrophysicists has found distinctive signatures of black hole event horizons, unmistakably separating them from neutron stars, which are objects comparable to black holes in mass and size but confined within a hard surface....
Related topics: Astrophysics, Neutron Stars

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Scientists Hope Black Holes The Size Of '100 Bln Suns' Will Help Solve Mystery Of The Universe

Although dark matter makes up most of the universe, scientists still cannot explain the very nature of it, relying only on studying its gravitational effects on normal matter.

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"a Black Hole As Massive As Earth Would Be About The Size Of A Ping-pong Ball And Would Be...

"No such primordial black holes have been detected yet. But neither has their existence been ruled out. Dr. Scholtz and Dr. Unwin pointed out that an experiment called OGLE, for Optical Gravitational Lensing Experiment, based at the University of...

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Proposal For Observatory To Detect Gravitational Waves

Researchers could detect more mergers of black holes and neutron stars with plans for a new flagship gravitational wave observatory in Europe moving a step closer.
Related topics: Neutron Stars

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Behold! The Black Hole Collision Calculator!

A new tool called the Black Hole Collision Calculator let's users see just how powerful a collision between a black hole and any other celestial object would be. The post Behold! The Black Hole Collision Calculator! appeared first on Universe Today.

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Astronomers Witnessed The Birth Of The First Intermediate Black Hole

An international team of astronomers witnessed the birth of the first intermediate-mass black hole ever detected. On May 21, 2019, a pair of gravitational wave observatories — The Laser Interferometry Gravitational-wave Observatory (LIGO) in the...
Related topics: Space, Laser

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How To Have A Blast Like A Black Hole

Scientists have created magnetized-plasma conditions similar to those near a black hole using very intense laser pulses. This work may help show how X-rays can be produced by astronomical objects.
Related topics: Laser

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New Black Hole Discovery Settles An Astronomer's Bet

Ilya Mandel Science, Astronomers have spotted a black hole so massive they weren’t sure it could exist. One of the greatest things about being an astrophysicist is that you keep discovering things you didn’t think were possible. Now the...
Related topics: Scientific Discoveries, Space, Astrophysics, Laser

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Astronomers Observe Largest-ever Merger Between ‘impossible’ Black Holes

One is too large to have been formed by a collapsing star
Related topics: Space

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A Clever 3d Checkered Rug That Creates The Optical Illusion Of A Gaping Vortex In The Middle Of The...

The 3D Vortex Rug is a cleverly designed black and white checkered floor covering that creates the optical illusion of a gaping hole in the middle of the floor. While this rug looks like it will suck in any and everything put on top, it is safe to...

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"this Crash Happened About 7 Bn Years Ago, When The Universe Was Half Its Current Age, But Is...

From "'It just sounds like a thud': astronomers hear biggest cosmic event since big bang/Researchers believe noise was two black holes colliding around 7 billion years ago, creating a previously unseen class of stellar object" (BBC).Lost in the...
Related topics: Space, Big Bang, BBC

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Some Quasars Actually Contain Two Supermassive Black Holes In The Process Of Merging

Astronomers have found a powerful quasar powered by two supermassive black holes. The post Some Quasars Actually Contain Two Supermassive Black Holes in the Process of Merging appeared first on Universe Today.
Related topics: Quasars, Space

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Nanoscale Engines Far Colder Than Even Deepest Outer Space

The theory of thermodynamics, commonly associated with the steam engines of the 19th century, is a universal set of laws that governs everything from black holes to the evolution of life. But with modern technologies miniaturizing circuits to the...

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More A ‘bang’ Than A ‘chirp’: Ligo, Virgo Detectors Track Signal From Most Massive Black...

The universe is abuzz with activity generated by gravitational waves that ripple through the fabric of space-time, generated by binary mergers either between two black holes or two neutron stars.
Related topics: Neutron Stars

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Scientists Detect First Mid-sized Black Hole Via Gravitational Waves

Thanks to LIGO and Virgo detectors, scientists have finally heard the 7-billion-year-old 'bang’ from the creation of an intermediate-mass black hole.

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