Current Uranium News and Events

Current Uranium News and Events, Uranium News Articles.
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Changing resilience of oceans to climate change
Oxygen levels in the ancient oceans were surprisingly resilient to climate change, new research suggests. (2021-01-15)

New study allows regional prediction of uranium in groundwater
Stanford researchers can predict where and when uranium is released into aquifers and suggest an easy fix to keep this naturally occurring toxin from contaminating water sources. (2020-12-08)

Geoscientists use zircon to trace origin of Earth's continents
Geoscientists have long known that some parts of the continents formed in the Earth's deep past, but the speed in which land rose above global seas -- and the exact shapes that land masses formed -- have so far eluded experts. (2020-12-01)

Understanding astrophysics with laser-accelerated protons
Bringing huge amounts of protons up to speed in the shortest distance in fractions of a second -- that's what laser acceleration technology, greatly improved in recent years, can do. An international research team from the GSI Helmholtzzentrum für Schwerionenforschung and the Helmholtz Institute Jena, a branch of GSI, in collaboration with the Lawrence Livermore National Laboratory, USA, has succeeded in using protons accelerated with the GSI high-power laser PHELIX to split other nuclei and to analyze them. (2020-11-16)

Radioactive elements may be crucial to the habitability of rocky planets
The amount of long-lived radioactive elements incorporated into a rocky planet as it forms may be a crucial factor in determining its future habitability. That's because internal heating from the radioactive decay of the heavy elements thorium and uranium drives plate tectonics and may be necessary for the planet to generate a magnetic field. Earth's magnetic field protects the planet from solar winds and cosmic rays. (2020-11-10)

Crystals reveal the danger of sleeping volcanoes
Most active volcanoes on Earth are dormant and are normally not considered hazardous. A team of volcanologists from the University of Geneva has devised a technique that can predict their devastating potential. The scientists used zircon, a tiny crystal contained in volcanic rocks, to estimate the volume of magma that could be erupted once Nevado de Toluca volcano (Mexico) will wake up from its dormancy. Up to 350 km3 of magma are currently lying below. (2020-11-05)

New technology allows cameras to capture colors invisible to the human eye
New research from Tel Aviv University will allow cameras to recognize colors that the human eye and even ordinary cameras are unable to perceive. The technology makes it possible to image gases and substances such as hydrogen, carbon and sodium, each of which has a unique color in the infrared spectrum, as well as biological compounds that are found in nature but are 'invisible' to the naked eye or ordinary cameras. (2020-11-05)

Russian scientists suggested a transfer to safe nuclear energy
Scientists from Far Eastern Federal University (FEFU), Ozersk Technological Institute, and the Russian Academy of Sciences have improved a processing technology of a monazite concentrate which is a mineral raw material employed as a source of rare earth elements and thorium. The latter, in turn, is a part of the thorium-uranium fuel cycle that is more eco-friendly compared to the one based on uranium and plutonium. A related article appears in Energies. (2020-10-19)

Hunting for the lowest known nuclear-excited state
Measurements in thorium-229 take a step towards the direct laser excitation of an atomic nucleus in this unique isotope (2020-10-06)

Filtering radioactive elements from water
Some time ago, ETH researchers developed a filter membrane made out of whey proteins and activated carbon. In a new study, they now demonstrate just how efficient this membrane is at filtering radioactive elements from contaminated water. (2020-09-29)

Elements of surprise: neutron stars contribute little, but something's making gold, research finds
Neutron star collisions do not create the quantity of chemical elements previously assumed, a new analysis of galaxy evolution finds. The research also reveals that current models can't explain the amount of gold in the cosmos - creating an astronomical mystery. The work has produced a new-look Periodic Table, showing the stellar origins of naturally occurring elements from carbon to uranium. (2020-09-15)

Mineral undergoes self-healing of irradiation damage
Several minerals suffer radioactive self-irradiation and hence experience long-term changes of their properties. The mineral monazite virtually behaves ''just alike Camembert cheese in which holes are drilled'': Existing radiation damage heals itself. An international research team led by Lutz Nasdala, Institute of Mineralogy and Crystallography, University of Vienna, conducted an ion-irradiation study that has unravelled the causes of the self-healing of monazite. Results were published in ''Scientific Reports''. (2020-09-09)

Wheat and couch grass can extract toxic metals from contaminated soils
Irina Shtangeeva is a researcher at the Department of Soil Science and Soil Ecology, St Petersburg University. She has studied the ability of wheat and couch grass to accumulate toxic substances. Both plants were capable of absorbing various chemical elements from contaminated soils. Although the plants were able to accumulate high concentrations of toxicants, they could survive under negative environmental conditions (2020-08-10)

New study shows retreat of East Antarctic ice sheet during previous warm periods
Questions about the stability of the East Antarctic Ice Sheet are a major source of uncertainty in estimates of how much sea level will rise as the Earth continues to warm. For decades, scientists thought the East Antarctic Ice Sheet had remained stable for millions of years, but recent studies have begun to cast doubt on this idea. Now, researchers report new evidence of substantial ice loss from East Antarctica during an interglacial warm period about 400,000 years ago. (2020-07-22)

New very short-lived isotope 222Np is observed
In a recent study, researchers at the Institute of Modern Physics (IMP) of the Chinese Academy of Sciences and their collaborators reported the first discovery of 222Np, a new very short-lived Np isotope, and validated the N = 126 shell effect in Np isotopes. The experiment, led by Prof. GAN Zaiguo of IMP, was carried out at the Heavy Ion Research Facility in Lanzhou. (2020-07-16)

Particulate plutonium released from the Fukushima Daiichi meltdowns
Small amounts of plutonium (Pu) were released from the damaged Fukushima Daiichi Nuclear Power Plant (FDNPP) reactors into the environment during the site's 2011 nuclear disaster. However, the physical, chemical, and isotopic form of the released Pu has remained unknown. Now, recent work published in the journal ''Science of the Total Environment'' has shown that Pu was included inside cesium-rich microparticles (CsMPs) that were emitted from the site. (2020-07-14)

Insights into climate change during origin of dinosaurs
An international team reveals discoveries about an unusual time called the 'Carnian Pluvial Episode,' a time around the origin of the dinosaurs. (2020-07-13)

Doubts about the Nerja cave art having been done by neanderthals
Prehistory research staff at the University of Cordoba is investigating the reliability of Uranium-thorium dating for a chronological study of Paleolithic art and is contesting that Neanderthals made the Paeolithic art in Spanish caves. (2020-06-02)

Physicists measure a short-lived radioactive molecule for first time
Researchers at MIT and elsewhere have combined the power of a super collider with techniques of laser spectroscopy to precisely measure a short-lived radioactive molecule, radium monofluoride, for the first time. (2020-05-27)

Metal collector made of bacteria
Bacteria, fungi and plants sometimes produce metal-binding substances that can be harnessed, for example for the extraction of raw materials, for their separation, for cleaning soils or for medical purposes. Professor Dirk Tischler, Head of the Microbial Biotechnology research group at Ruhr-Universität Bochum (RUB), outlines how these natural substances or modified semi-artificial variants of them can be produced according to genetic information in an article in Natural Product Reports from May 19, 2020. (2020-05-26)

Going nuclear on the moon and Mars
It might sound like science fiction, but scientists are preparing to build colonies on the moon and, eventually, Mars. With NASA planning its next human mission to the moon in 2024, researchers are looking for options to power settlements on the lunar surface. According to a new article in Chemical & Engineering News, the weekly newsmagazine of the American Chemical Society, nuclear fission reactors have emerged as top candidates to generate electricity in space.  (2020-05-20)

Ancient rocks show high oxygen levels on Earth 2 billion years ago
Earth may have been far more oxygen-rich early in its history than previously thought, setting the stage for the evolution of complex life, according to new research by scientists at the University of Alberta and the University of Tartu in Estonia. (2020-05-12)

Study reveals single-step strategy for recycling used nuclear fuel
A typical nuclear reactor uses only a small fraction of its fuel rod to produce power before the energy-generating reaction naturally terminates. What is left behind is an assortment of radioactive elements, including unused fuel, that are disposed of as nuclear waste in the United States. Although certain elements recycled from waste can be used for powering newer generations of nuclear reactors, extracting leftover fuel in a way that prevents possible misuse is an ongoing challenge. (2020-05-04)

The cause of the red coloration in stalagmites
A study by the UPV/EHU confirms the cause of the mysterious red colour of the stalagmites in the Goikoetxe Cave located in the Urdaibai Biosphere Reserve, and its potential use as an indicator of palaeoclimate changes on the Cantabrian seaboard between 7,000 and 5,000 years ago. (2020-04-27)

'A bad time to be alive': Study links ocean deoxygenation to ancient die-off
Researchers present new evidence that the deoxygenation of the ocean wiped out biodiversity during one of the ''Big Five'' mass extinctions in Earth's history - relevant information as climate change contributes to decreasing oxygen in the oceans today. (2020-04-14)

New measurements reveal evidence of elusive particles in a newly-discovered superconductor
Now a team of researchers at the University of Illinois, led by physicist Vidya Madhavan, in collaboration with researchers from the National Institute of Standards and Technology, the University of Maryland, Boston College, and ETH Zurich, have used high-resolution microscopy tools to peer at the inner-workings of an unusual type of superconductor, uranium ditelluride (UTe2). Their measurements reveal strong evidence that this material may be a natural home to an exotic quasiparticle that's been hiding from physicists for decades. (2020-04-03)

Story tips: Molding matter atom by atom and seeing inside uranium particles
Story tips from the Department of Energy's Oak Ridge National Laboratory: Molding matter atom by atom and seeing inside uranium particles (2020-04-02)

In South Africa, three hominins, including earliest Homo erectus, lived during same period
Nearly 2 million years ago, three hominin genera -- Australopithecus, Paranthropus and the earliest Homo erectus lineage -- lived as contemporaries in the karst landscape of what is now South Africa, according to a new geochronological evaluation of the hominin fossil-rich Drimolen Paleocave complex. (2020-04-02)

Study challenges common view of oxygen scarcity on Earth 2 billion years ago
Geologists at University of Tartu and University of Alberta in collaboration with an international research team found evidence for elevated oxygen levels 2 billion years ago, in contradiction to previously accepted models that predict low oxygen at that time. (2020-03-24)

Co-occurring contaminants may increase NC groundwater risks
Eighty-four percent of the wells sampled in the Kings Mountain Belt and the Charlotte and Milton Belts of the Piedmont region of North Carolina contained concentrations of vanadium and hexavalent chromium that exceeded health recommendations from the North Carolina Department of Health and Human Services. (2020-03-24)

Researchers detail how antineutrino detectors could aid nuclear nonproliferation
The article appears in the latest issue of Reviews of Modern Physics. In the paper, the scientists review current and projected readiness of various antineutrino-based monitoring technologies. (2020-03-19)

A new record of deglaciations in last million years shows persistent role of obliquity pacing
Over the last million years, small variations in Earth's orbit continued to trigger and terminate global glaciations, throughout and after the Mid-Pleistocene Transition, according to a new study, which presents a novel high-resolution record of the last 11 deglaciations. (2020-03-12)

Atomic fingerprint identifies emission sources of uranium
Depending on whether uranium is released by the civil nuclear industry or as fallout from nuclear weapon tests, the ratio of the two anthropogenic, i.e. man-made, uranium isotopes 233U and 236U varies. These results were lately found by an international team at the University of Vienna and provides a promising new ''fingerprint'' for the identification of radioactive emission sources. As a consequence, it is also an excellent environmental tracer for ocean currents. (2020-03-09)

Argonne's pioneering user facility to add magic number factory
A forthcoming N = 126 Factory will investigate one of the great questions in physics and chemistry: how were the heavy elements from iron to uranium created? (2020-03-06)

Machine learning illuminates material's hidden order
A Cornell collaboration led by physicist Brad Ramshaw, the Dick & Dale Reis Johnson Assistant Professor in the College of Arts and Sciences, used a combination of ultrasound and machine learning to narrow the possible explanations for what happens to this quantum material when it enters this so-called ''hidden order.'' (2020-03-06)

TPU researchers discover how to improve safety of nuclear power plants
Researchers at Tomsk Polytechnic University found a method to increase fuel lifetime by 75%. According to the research team, it will significantly increase safety and reduce the operating cost of nuclear power plants in hard-to-reach areas. (2020-02-14)

Not everything is ferromagnetic in high magnetic fields
High magnetic fields have a potential to modify the microscopic arrangement of magnetic moments because they overcome interactions existing in zero field. Usually, high fields exceeding a certain critical value force the moments to align in the same direction as the field leading to ferromagnetic arrangement. However, a recent study showed that this is not always the case. The experiments took place at the high-field magnet at HZB's neutron source BER II. (2020-02-10)

Prehistoric skeleton discovered in Southern Mexico
A prehistoric human skeleton found in southern Mexico is at least 10,000 years old and most likely dates from the end of the most recent ice age. An international research team led by geoscientists from Heidelberg University studied the remains of the approximately 30-year-old woman. The uranium-thorium dating technique was used to determine the age of the fossil record, which provides important clues on the early settlement history of the American continent. (2020-02-05)

Old molecule, new tricks
Fifty years ago, scientists hit upon what they thought could be the next rocket fuel. Carboranes -- molecules composed of boron, carbon and hydrogen atoms clustered together in three-dimensional shapes -- were seen as the possible basis for next-generation propellants due to their ability to release massive amounts of energy when burned. (2020-01-22)

Research supports new approach to mine reclamation
Geomorphic reclamation is a relatively novel approach intended to mimic the topography of nearby undisturbed lands, with a wide variety of terrain that is stable and less susceptible to erosion. (2020-01-21)

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