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The "Science and Space" Thread #2

382K views 6K replies 43 participants last post by  ekim68 
#1 ·
Big Bang Conditions Created in Lab.

By smashing gold particles together at super-fast speeds, physicists have basically melted protons, creating a kind of "quark soup" of matter that is about 250,000 times hotter than the center of the sun and similar to conditions just after the birth of the universe.

-- Tom
 
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#5,087 ·

NASA Confirms DART Mission Impact Changed Asteroid’s Motion in Space


Analysis of data obtained over the past two weeks by NASA’s Double Asteroid Redirection Test (DART) investigation team shows the spacecraft's kinetic impact with its target asteroid, Dimorphos, successfully altered the asteroid’s orbit. This marks humanity’s first time purposely changing the motion of a celestial object and the first full-scale demonstration of asteroid deflection technology.
 
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Final results of MICROSCOPE mission achieve record levels of precision


The MICROSCOPE mission has delivered its latest results and has confirmed the equivalence principle with unprecedented accuracy of 10-15. These results show that bodies fall in a vacuum with the same acceleration regardless of their composition or mass, meaning that the principle of equivalence remains unwavering today, to mark yet another victory for the Theory of General Relativity as proposed by Albert Einstein more than a century ago.
 
#5,101 ·

'Wobbling black hole' most extreme example ever detected


Researchers at Cardiff University have identified a peculiar twisting motion in the orbits of two colliding black holes, an exotic phenomenon predicted by Einstein's theory of gravity.

Their study, which is published in Nature and led by Professor Mark Hannam, Dr. Charlie Hoy and Dr. Jonathan Thompson, reports that this is the first time this effect, known as precession, has been seen in black holes, where the twisting is 10 billion times faster than in previous observations.
 
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A skyscraper-sized 'potentially hazardous' asteroid will zip through Earth's orbit on Halloween


The asteroid, called 2022 RM4, has an estimated diameter of between 1,083 and 2,428 feet (330 and 740 meters) — just under the height of Dubai's 2,716-foot-tall (828 m) Burj Khalifa, the tallest building in the world. It will zoom past our planet at around 52,500 mph (84,500 km/h), or roughly 68 times the speed of sound, according to NASA .

At its closest approach on Nov. 1, the asteroid will come within about 1.43 million miles (2.3 million kilometers) of Earth, around six times the average distance between Earth and the moon. By cosmic standards, this is a very slender margin.
 
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Strange material demonstrates exotic quantum state at room temperature


A topological insulator is a material with a structure that conducts electrons in a unique way. The bulk of the material is an insulator, completely preventing the flow of electrons through it. However, thin layers at its surface and along its edges are highly conductive, allowing electrons to flow freely at high efficiencies. Given these weird properties, topological insulators can host some intriguing quantum states that could be useful for building future quantum technologies.
 
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