Physics

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Closest black hole to Earth found hidden in our ‘cosmic backyard’

Astronomers have discovered the closest known black hole to Earth, and it’s twice as close as the previous record holder. The space-time The singularity, named Gaia BH1, is 1,566 light-years away in the constellation Ophiuchus and is about 10 times more massive than our own. Sun. It’s close enough to our planet to be considered …

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Study reveals properties of fast-spinning magnetic star HD 345439

Study reveals properties of fast-spinning magnetic star HD 345439

Upper panel: pre-whitened light curve of HD 345439. Lower panel: residual magnitudes after subtracting the light curve with the periodic signal. Credit: Shen et al, 2022 Using the Nanshan One-Meter Wide-Field Telescope (NOWT), Chinese astronomers have made multicolored photometric observations of a rapidly rotating magnetic star known as HD 345439. The results of this campaign …

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Don't Get Entangled With These 4 Misconceptions About Quantum Mechanics

Don’t Get Entangled With These 4 Misconceptions About Quantum Mechanics

Quantum mechanics, the theory that governs the microworld of atoms and particles, certainly has the X factor. Unlike many other areas of physics, it is bizarre and counter-intuitive, which makes it dazzling and intriguing. When the 2022 Nobel Prize in Physics was awarded to Alain Aspect, John Clauser and Anton Zeilinger for their research shedding …

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Popping Cosmic Inflation

Can cosmic inflation – and the Big Bang – be ruled out?

Cosmic inflation is a popular scenario for the first phase in the evolution of the Universe. Credit: A. Ijjas, PJ Steinhardt and A. Loeb (Scientific American, February 2017) According to astrophysicists, cosmic inflation – a point in the infancy of the Universe where spacetime expanded exponentially, and what physicists really refer to when they talk …

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If you could shrink down to the size of an atom, what would you see?

If you could shrink down to the size of an atom, what would you see?

In 2022, three physicists won the Nobel Prize in Physics for their work on “scary” quantum entanglement. Some quantum researchers are now planning to hold a Halloween party in the subatomic world. There, they hope to experience first-hand the strange quantum effects that have long fueled their imaginations. But what would the subatomic world look …

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Four common misconceptions about quantum physics

Four common misconceptions about quantum physics

Quantum mechanics, the theory that governs the microworld of atoms and particles, certainly has the X-factor. Unlike many other areas of physics, it is bizarre and counter-intuitive, which makes it dazzling and intriguing. When the 2022 Nobel Prize in Physics was awarded to Alain Aspect, John Clauser and Anton Zeilinger for their research shedding light …

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Shedding light on the superconductivity of newly discovered kagome metals

Shedding light on the superconductivity of newly discovered kagome metals

Liang Wu is an assistant professor in the Department of Physics and Astronomy in the School of Arts and Sciences. Credit: University of Pennsylvania Already used in computers and MRI machines, superconductors, materials capable of transmitting electricity without resistance, hold promise for the development of even more advanced technologies, such as aerotrains and quantum computing. …

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