Current Cosmic Rays News and Events

Current Cosmic Rays News and Events, Cosmic Rays News Articles.
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Drifter or homebody? Study first to show where whitespotted eagle rays roam
It's made for long-distance travel, yet movement patterns of the whitespotted eagle ray remain a mystery. Between 2016 and 2018, scientists fitted 54 rays with acoustic transmitters and tracked them along both the Gulf of Mexico and Atlantic coasts of Florida, which differ in environmental characteristics. Results of the study reveal striking differences in travel patterns on the Atlantic coast compared to the Gulf coast and findings have significant conservation and adaptive management implications for this protected species. (2021-02-23)

ET phones home!
A team of researchers from the Hebrew University of Jerusalem has discovered the first evidence of radio flares emitted only long after a star is destroyed by a black hole. (2021-02-23)

Reclusive neutron star may have been found in famous supernova
Since astronomers captured the bright explosion of a star on February 24, 1987, researchers have been searching for the squashed stellar core that should have been left behind. A group of astronomers using data from NASA space missions and ground-based telescopes may have finally found it. (2021-02-23)

Big Data to model the evolution of the cosmic web
The Instituto de Astrofísica de Canarias (IAC) has led an international team which has developed an algorithm called COSMIC BIRTH to analyse large scale cosmic structures. This new computation method will permit the analysis of the evolution of the structure of dark matter from the early universe until the formation of present day galaxies. This work was recently published in the journal Monthly Notices of the Royal Astronomical Society (MNRAS). (2021-02-22)

Scientists claim that all high-energy cosmic neutrinos are born by quasars
Scientists of the P. N. Lebedev Physical Institute of the Russian Academy of Sciences (LPI RAS), the Moscow Institute of Physics and Technology (MIPT) and the Institute for Nuclear Research of RAS (INR RAS) studied the arrival directions of astrophysical neutrinos with energies more than a trillion electronvolts (TeV) and came to an unexpected conclusion: all of them are born near black holes in the centers of distant active galaxies - powerful radio sources. (2021-02-22)

Ghost particle from shredded star reveals cosmic particle accelerator
Tracing back a ghostly particle to a shredded star, scientists have uncovered a gigantic cosmic particle accelerator. The subatomic particle was hurled towards Earth after the doomed star came too close to the supermassive black hole at the centre of its home galaxy and was ripped apart, as the team led by DESY scientist Robert Stein reports in the journal Nature Astronomy. (2021-02-22)

Scientists link star-shredding event to origins of universe's highest-energy particles
A team of scientists has detected the presence of a high-energy neutrino in the wake of a star's destruction as it is consumed by a black hole. This discovery sheds new light on the origins of Ultrahigh Energy Cosmic Rays--the highest energy particles in the Universe. (2021-02-22)

42,000-year-old trees allow more accurate analysis of last Earth's magnetic field reversal
The last complete reversal of the Earth's magnetic field, the so-called Laschamps event, took place 42,000 years ago. Radiocarbon analyses of the remains of kauri trees from New Zealand now make it possible for the first time to precisely time and analyse this event and its associated effects, as well as to calibrate geological archives such as sediment and ice cores from this period. Simulations based on this show considerable effects in the Earth's atmosphere. (2021-02-19)

Ancient relic points to a turning point in Earth's history 42,000 years ago
The temporary breakdown of Earth's magnetic field 42,000 years ago sparked major climate shifts that led to global environmental change and mass extinctions, a new international study co-led by UNSW Sydney and the South Australian Museum shows. (2021-02-18)

3D-printing perovskites on graphene makes next-gen X-ray detectors
By using 3D aerosol jet-printing to put perovskites on graphene, scientists at EPFL have made X-ray detectors with record sensitivity that can greatly improve the efficiency and reduce the cost and health hazard of medical imaging devices. (2021-02-17)

Supercomputer turns back cosmic clock
Astronomers have tested a method for reconstructing the state of the early Universe by applying it to 4000 simulated universes using the ATERUI II supercomputer at the National Astronomical Observatory of Japan (NAOJ). They found that together with new observations the method can set better constraints on inflation, one of the most enigmatic events in the history of the Universe. The method can shorten the observation time required to distinguish between various inflation theories. (2021-02-16)

Research highlights ways to protect astronaut cardiovascular health from space radiation
In the inky blackness of space an invisible threat is ever present - radiation. It can have a huge array of negative effects on astronaut health, including cardiovascular disease. However, if we are ever to journey to the red planet, we will need to understand and reduce this risk. A new review charts a course through what we know about the cardiovascular risks of space radiation, and the best ways to protect space travelers. (2021-02-12)

Climate research: rapid formation of iodic particles over the Arctic
When sea ice melts and the water surface increases, more iodine-containing vapours rise from the sea. Scientists from the international research network CLOUD have now discovered that aerosol particles form rapidly from iodine vapours, which can serve as condensation nuclei for cloud formation. The CLOUD researchers, among them scientists from the Goethe University Frankfurt, fear a mutual intensification of sea ice melt and cloud formation, which could accelerate the warming of the Arctic and Antarctic. (2021-02-11)

Placing cosmological constraints on quantum gravity phenomenology
Through new research published in EPJ C, researchers have used well-established cosmological observations to place tighter constraints on the quadratic model of the Generalized Uncertainty Principle, while discrediting the linear model. (2021-02-10)

Super-Earth atmospheres probed at Sandia's Z machine
Sandia National Laboratorie' Z machine has replicated the gravitational pressures on so-called ''super-Earths'' to determine which might maintain atmospheres that could support life. Astronomers believe that super-Earths -- collections of rocks up to eight times larger than Earth -- exist in the millions in our galaxy. ''The question before us is whether any of these super planets are actually Earthlike, with active geological processes, atmospheres and magnetic fields,'' said Sandia physicist Joshua Townsend. The researchers found seven. (2021-02-09)

Can super-Earth interior dynamics set the table for habitability?
New research led by Carnegie's Yingwei Fei provides a framework for understanding the interiors of super-Earths--rocky exoplanets between 1.5 and 2 times the size of our home planet--which is a prerequisite to assess their potential for habitability. Planets of this size are among the most abundant in exoplanetary systems. (2021-02-09)

First images of muon beams
A new technique has taken the first images of muon particle beams. Nagoya University scientists designed the imaging technique with colleagues in Osaka University and KEK, Japan. They plan to use it to assess the quality of these beams, which are being used more and more in advanced imaging applications. (2021-02-03)

Coral decline -- is sunscreen a scapegoat?
A recent paper in the journal of Environmental Toxicology and Chemistry (ET&C) summarizes the scientific literature assessing the impact of organic UV filters on coral ecosystems. The researchers concluded that while organic UV filters do occur in the environment, there is limited evidence to suggest their presence is causing significant harm to coral reefs. (2021-02-02)

At cosmic noon, puffy galaxies make stars for longer
Massive galaxies with extra-large extended ''puffy'' disks produced stars for longer than their more compact cousins, new modelling reveals. (2021-02-02)

A full-scale prototype for muon tomography
In this article of EPJ Plus, researchers build on previous studies into detection technologies and reconstruction algorithms for muon tomography, to develop a full-scale muon tomograph prototype. (2021-02-01)

New findings on devonian 'platypus fish' cast light on evolution of modern jawed vertebrates
New findings on the brain and inner ear cavity of a 400-million-year-old platypus-like fish cast light on the evolution of modern jawed vertebrates, according to a study led by Dr. ZHU Youan and Dr. LU Jing from the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese Academy of Sciences. (2021-01-27)

Better bundled: new principle for generating X-rays
X-rays are usually difficult to direct and guide. X-ray physicists at the University of Göttingen have developed a new method with which the X-rays can be emitted more precisely in one direction. To do this, the scientists use a structure of thin layers of materials with different densities of electrons to simultaneously deflect and focus the generated beams. The results of the study were published in the journal Science Advances. (2021-01-25)

Search for axions from nearby star Betelgeuse comes up empty
An MIT-led search for axions from nearby star Betelgeuse has come up empty, significantly narrowing the search for hypothetical dark matter particle. (2021-01-21)

Spectacular fossil discovery:
A team led by Sebastian Stumpf from the University of Vienna describes an well-preserved skeleton of the ancient shark Asteracanthus. This rare fossil find comes from the famous Solnhofen limestones in Bavaria, which was formed in a tropical-subtropical lagoon landscape during the Late Jurassic, about 150 million years ago. The almost complete skeleton shows that Asteracanthus was two-and-a-half meters long, which makes this ancient shark one of the largest of its time. The study is published in Papers in Palaeontology. (2021-01-14)

Galaxies hit single, doubles, and triple (growing black holes)
When three galaxies collide, what happens to the huge black holes at the centers of each? A new study using NASA's Chandra X-ray Observatory and several other telescopes reveals new information about how many black holes are furiously growing after these galactic smash ups. (2021-01-14)

Scientists find antibody that blocks dengue virus
The research team used the Advanced Photon Source to confirm an effective antibody that prevents the dengue virus from infecting cells in mice, and may lead to treatments for this and similar diseases. (2021-01-13)

Rare star's giant gamma-ray burst GRB 204015A captured close to our home galaxy
Earth gets blasted by mild gamma ray bursts most days. But sometimes a giant flare like GRB 200415A arrives at our galaxy, sweeping along energy that dwarfs our sun. It erupted from a rare, powerful neutron star called a magnetar - giving new clues to GRB origins - and from relatively nearby. The extreme explosions from these bursts can disrupt mobile phone reception, and can also be messengers from the very early history of the universe. (2021-01-13)

NASA missions unmask magnetar eruptions in nearby galaxies
On April 15, 2020, a brief burst of high-energy light swept through the solar system, triggering instruments on many NASA spacecraft. Scientists think the blast came from a supermagnetized stellar remnant located in a neighboring galaxy. (2021-01-13)

Unveiling the double origin of cosmic dust in the distant Universe
Two billion years after the Big Bang, the Universe was still very young. However, thousands of huge galaxies, rich in stars and dust, were already formed. A new study explains how this was possible. Scientists identified the processes behind their evolution and found evidence for a rapid growth of dust due to a high concentration of metals in the distant Universe. The study offers a new approach to investigate the evolutionion of massive objects. (2021-01-11)

'Galaxy-sized' observatory sees potential hints of gravitational waves
Scientists believe that planets like Earth bob in a sea of gravitational waves that spread throughout the universe. Now, an international team has gotten closer than ever before to detecting those cosmic ripples. (2021-01-11)

Initial severity of COVID-19 not associated with later respiratory complications
A new study published online in the Annals of the American Thoracic Society examines the recovery of lung function and overall wellness in individuals who had varying degrees of COVID-19 severity. Little is known about lung health following infection with SARS-CoV-2, the virus that causes COVID-19, and whether later respiratory problems, fatigue and ill health are associated with the disease's initial severity. (2021-01-08)

Chandra studies extraordinary magnetar
In 2020, astronomers added a new member to an exclusive family of exotic objects with the discovery of a magnetar. New observations from NASA's Chandra X-ray Observatory help support the idea that it is also a pulsar, meaning it emits regular pulses of light. (2021-01-08)

New hard disk write head analytical technology can increase hard disk capacities
Using synchrotron radiation at SPring-8 - a large-scale synchrotron radiation facility - Tohoku University, Toshiba Corporation, and the Japan Synchrotron Radiation Research Institute (JASRI) have successfully imaged the magnetization dynamics of a hard disk drive (HDD) write head for the first time, with a precision of one ten-billionth of a second. The method makes possible precise analysis of write head operations, accelerating the development of the next-generation write heads and further increasing HDD capacity. (2021-01-07)

Astronomers agree: Universe is nearly 14 billion years old
From an observatory high above Chile's Atacama Desert, astronomers have taken a new look at the oldest light in the universe. Their observations, plus a bit of cosmic geometry, suggest that the universe is 13.77 billion years old - give or take 40 million years. (2021-01-04)

Combined observations of neutron stars constrain their equation of state and the Hubble constant
Combining signals from multiple observations of neutron stars has allowed researchers to better understand the properties of ultra-dense matter and constrain the Hubble constant, which describes how fast the Universe is expanding, according to a new study. (2020-12-17)

Multi-messenger astronomy offers new estimates of neutron star size and universe expansion
Multi-messenger astronomy allows researchers to put new constraints on the radius of a typical neutron star and provide a novel calculation of the Hubble constant. (2020-12-17)

Most-distant galaxy helps elucidate the early universe
New work from an international team of astronomers improves our understanding of the most-distant known astrophysical object-- GN-z11, a galaxy 13.4 billion light-years from Earth. (2020-12-16)

Astronomers detect possible radio emission from exoplanet
By monitoring the cosmos with a radio telescope array, a Cornell University-led international team of scientists has detected radio bursts emanating from the constellation Boötes. The signal could be the first radio emission collected from a planet beyond our solar system. (2020-12-16)

UMBC researchers identify where giant jets from black holes discharge their energy
Scientists have disagreed about where powerful jets from black holes discharge their energy. A new study in Nature Communications uses standard statistical techniques and relies on very few assumptions to determine that the jets release their energy in an area called the molecular torus, which is much farther away from the black hole's center than another prime candidate, the broadline region. This finding has implications for how jets form, pick up speed, and become column-shaped. (2020-12-15)

Artificial intelligence improves control of powerful plasma accelerators
Researchers have used AI to control beams for the next generation of smaller, cheaper accelerators for research, medical and industrial applications. (2020-12-11)

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