Physicists have 'heard' the ringing of an infant black hole for the first time, and found that the pattern of this ringing does, in fact, predict the black hole's mass and spin -- more evidence that Einstein was right all along.... SCIENCE DAILY · 5 months
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Material falling into a black hole casts X-rays out into space – and now, for the first time, ESA’s XMM-Newton X-ray observatory has used the reverberating... more
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Image: These illustrations show the surroundings of a black hole feeding on ambient gas as mapped using ESA’s XMM-Newton X-ray... more
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As material spirals towards a black hole, it is heated up and emits X-rays that, in turn, echo and reverberate as they... more
Astronomers use 'cosmic echolocation' to map black hole surroundings  PHYS.ORG · 4 weeks
Material falling into a black hole casts X-rays out into space—and now astronomers have used the echoes of this radiation to map the dynamic behavior and surroundings of a black... more
Calculating Hawking radiation at the event horizon of a black hole  PHYS.ORG · 3 weeks
A RUDN University physicist has developed a formula for calculating Hawking radiation on the event horizon of a black hole, which allows physicists to determine how... more
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Astronomers from UCLA’s Galactic Center Orbits Initiative have discovered a new class of bizarre objects at the center of our galaxy, not far from... more
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It's a scene that some cancer patients dream about: they celebrate the end of a course of radiation or chemotherapy by ringing... more
Black holes eat stars in variable mood lighting  PHYS.ORG · 2 weeks
When a black hole chews up a star, it produces visible light or X-rays, but astronomers have almost never detected both types of radiation. Astronomer Peter Jonker (SRON / Radboud University) and... more
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Small fish use light for active sensing to detect potential predators. The yellow black-faced triplefin (Tripterygion delaisi) can reflect downwelling sunlight sideways with its iris, illuminating its immediate... more
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The Breakthrough Listen Initiative, the largest ever scientific research program aimed at finding evidence of alien civilizations, has released data from the most comprehensive... more
Black history month is not just a time to celebrate marches and martyrs  PHYS.ORG · 3 weeks
February 1st marks the start of Black History Month. While many people are familiar with iconic figures such as Martin Luther King... more
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Breakthrough Listen releases 2 petabytes of data from SETI survey of Milky Way  PHYS.ORG · 4 days
The Breakthrough Listen Initiative today released data from the most comprehensive survey yet of radio emissions from the plane of the Milky... more
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Astronomers using data from ESA’s Gaia star-mapping satellite have discovered a newborn gaseous exoplanet closer to Earth than any other of similarly young age... more
Astrophysicists construct approximations for the metric of spherically symmetric black holes  PHYS.ORG · 3 weeks
RUDN astrophysicists have proposed a new method for approximate calculation of the parameters of spherically symmetric black holes in the Einstein-Maxwell theory. By comparing the shadow... more
Simulations reveal galaxy clusters details  PHYS.ORG · 4 weeks
Inspired by the science fiction of the spacefaring Romulans of Star Trek, astrophysicists have used XSEDE-allocated supercomputers to develop cosmological computer simulations called RomulusC, where the 'C' stands for galaxy cluster. With a focus on black hole physics,... more
Astrophysicists find massive black holes wandering around dwarf galaxies  PHYS.ORG · 4 weeks
A new search led by Montana State University has revealed more than a dozen massive black holes in dwarf galaxies that were previously considered too small to host them, and... more
Scientists discover the nearest-known 'baby giant planet'  PHYS.ORG · 7 days
Scientists from Rochester Institute of Technology have discovered a newborn massive planet closer to Earth than any other of similarly young age found to date. The baby giant planet, called 2MASS 1155-7919 b, is... more
Scientists detect Marburg virus in Sierra Leone fruit bats  NEWS MEDICAL · 4 weeks
Scientists have detected Marburg virus in fruit bats in Sierra Leone, marking the first time the deadly virus has been found in West Africa. Eleven Egyptian rousette fruit bats tested... more
Rapid test to detect salmonella in food  PHYS.ORG · 2 weeks
Anyone can get salmonella poisoning, but babies, toddlers, the elderly and people with immunodeficiencies are particularly susceptible. For people with weakened immune systems, the gastrointestinal disease can lead to serious complications. So far it... more
In Norway, bottles made of plastic are still fantastic  PHYS.ORG · 6 days
One at a time, the elderly lady places her empties into the gaping hole of a machine at the entrance to an Oslo supermarket. With a well-functioning deposit system, Norway... more
Is hiring more black officers the key to reducing police violence?  PHYS.ORG · 2 weeks
High-profile cases of officer brutality against black citizens in recent years have caused Americans to question the racial makeup of their police departments. more
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Conclusions about the effects of digital media, or "screen time," are often incomplete, irrelevant or wrong, scientists say. more
Why people go into debt: The money isn't really theirs  PHYS.ORG · 4 weeks
In 2019, U.S. consumer debt reached an all-time high, surpassing levels last seen during the 2008 financial crisis. Such debt takes many forms, including mortgages and student loans.... more
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Engineers have developed a new scanning technique inspired by the natural world that can detect corroding metals in oil and gas pipelines. By mimicking how bats... more
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