An exploding white dwarf star blasted itself out of its orbit with another star in a "partial supernova" and is now hurtling across our galaxy, according to a new study from the University of Warwick.
Astronomers have discovered the second-most distant short gamma-ray burst (SGRB) ever detected using two Maunakea Observatories in Hawaii. It's also the most distant SGRB to have its optical afterglow captured. W. M. Keck Observatory and the international Gemini Observatory (on Maunakea) data confirm the SGRB is located 10 billion light-years away when the universe was in its 'teenage years.' Finding an SGRB this early in time is surprising and could alter theories about their origins.
New research shows that neutron stars in a 'teenage' universe could merge relatively quickly.
Rapid follow-up of the optical afterglow from one of the most distant confirmed short gamma-ray bursts (SGRB), thought to be the merger of two neutron stars, is casting new light on these enigmatic objects. The observations, made by the international Gemini Observatory, a Program of NSF's NOIRLab, confirmed the object's distance and placed it squarely in the epoch of cosmic high noon, when the Universe was in its ''teenage years'' and rapidly forming stars.
Rapid follow-up of the optical afterglow from one of the most distant confirmed short gamma-ray bursts (SGRB), thought to be the merger of two neutron stars, is casting new light on these enigmatic objects. The observations, made by the international Gemini Observatory, a Program of NSF's NOIRLab, confirmed the object's distance and placed it squarely in the epoch of cosmic high noon, when the Universe was in its "teenage years" and rapidly forming stars. The appearance of an SGRB so e
An astrophotography competition run by London's Royal Observatory Greenwich, announces a shortlist of exceptional images for its 2020 contest.
The Hubble Space Telescope captured an image of a distant star casing "bat wing" shadows into space. The star's bright light is hitting a disk of debris surrounding the star, casting wide shadows we can see thanks to Hubble.
A research team led by Cardiff University scientists say they are closer to understanding how a supermassive black hole (SMBH) is born thanks to a new technique that has enabled them to zoom in on one of these enigmatic cosmic objects in unprecedented detail.
Starspots are more common among red giant stars than previously thought. In the journal Astronomy & Astrophysics, researchers led by the Max Planck Institute for Solar System Research (MPS) in Germany report that approximately eight percent of red giants exhibit such spots. They are the expression of strong magnetic fields at the stellar surface. These magnetic fields are created deep inside the star in a process that requires, among other things, convection and a fast rotation of the star.
For the past decade, an international team of astronomers, led in part by Brent Tully at the University of Hawaii Institute for Astronomy, has been mapping the distribution of galaxies around the Milky Way. They have discovered an immense structure beyond Laniakea, an immense supercluster of galaxies, including our own. Astronomers have dubbed the newly identified structure the South Pole Wall.
Cosmic structure akin to curtain that stretches along southern border of universe
A pint-sized helicopter is making the trip to Mars along with the Perseverance rover. The helicopter will perform autonomous flight tests in the thin Martian atmosphere. If successful, the helicopter could be used as a proof of concept for drone missions to Mars.
The Emirates Hope Mission, scheduled to launch this Friday, is the first Arab attempt to reach the Red Planet. Heres how the UAE will endeavor to make history. <meta property=
See photos of the historic Emirates Mars Mission, which will send the United Arab Emirates' Hope orbiter to the Red Planet.
Sometime in the period that begins on July 30 and ends on August 15, NASA’s Perseverance rover will take off from Cape Canaveral, Florida on what is without a doubt the most important mission to another planet humanity has ever attempted.
The United Arab Emirates, the U.S. and China are all launching robotic missions to the Red Planet.
The Hope orbiter will make contributions to research on the red planet, but the Emirati government really hopes it will inspire future scientists.
Ahead of its Mars 2020 launch from Cape Canaveral on July 30, NASA has released a "movie trailer" for the event, featuring its Perseverance rover as the star.
From the Moon to Mars: China's march across space
NASA's Perseverance rover will scour Mars for signs of life
Humanity on Mars? Technically possible, but no voyage on horizon
Mars is about to be invaded by planet Earthbig time.
Last week, the agency's Office of Planetary Protection (OPP) announced that they'd hired the Search for Extraterrestrial Intelligence (SETI) Institute to support all current and future missions per OPP's standards. Researchers at SETI will oversee nearly all aspects of hygiene on future flight projects, and are charged with carrying out new guidelines for "biological cleanliness."
NIMS has succeeded for the first time in visualizing sequential changes in electrical potential distribution across a composite electrode during charge/discharge reactions in all-solid-state lithium ion batteries. This distribution was previously measureable only before and after the occurrence of charge/discharge reactions. Microscopic understanding of charge/discharge reaction mechanisms in electrodes may facilitate the design of new devices capable of improving the performance of all-solid-st
How should one design porous carbon materials for advanced Li-S batteries cathodes? What electrolytes are extensively studied for high-safety Li-S batteries? In a paper published in Nano, a group of researchers from Qingdao, China have reviewed the recent progress in sulfur/carbon cathode materials and high safety electrolytes towards advanced Li-S batteries. Some potential issues and possible developmental directions are also discussed.
Cell phone batteries often heat up and, at times, can burst into flames. In most cases, the culprit behind such incidents can be traced back to lithium batteries. Despite providing long-lasting electric currents that can keep devices powered up, lithium batteries can internally short circuit, heating up the device.
Rice University scientists use an industrial laser to turn adhesive tape into a component for safer, anode-free lithium metal batteries.
How should one design porous carbon materials for advanced Li-S batteries cathodes? What electrolytes are extensively studied for high-safety Li-S batteries? In a <a target=''_blank''href='' https://www.worldscientific.com/doi/10.1142/S1793292020300029?utm_source=eureka_alert&utm_medium=press_release&utm_campaign=eureka_NANO''
Professor Yong-Tae Kim's research team improves the durability of automotive fuel cells through selective electro-catalysis.
These days with everything being digital, using pens/pencils and writing on paper almost feels archaic. However, it seems that maybe we...
Multi-university effort develops solar energy storage to enable decentralized electrification systems in remote areas.
Chemists at the University of Wisconsin-Madison and their collaborators have created a highly efficient and long-lasting solar flow battery, a way to generate, store and redeliver renewable electricity from the sun in one device. The new device is made of silicon solar cells combined with advance
As the Argonne National Laboratory highlights, lithium batteries have utilized cathode coatings for more than 15 years albeit in a limited capacity. Existing implementations only blanket a small part of the outside of the cathode particle and arent effective when…
A team of researchers affiliated with several institutions in China has developed a way to reduce the operating temperature of ceramic fuel cells by using a high proton conductivity electrolyte. In their paper published in the journal Science, the group describes their electrolyte and how well it worked when tested in a hydrogen fuel cell. Meng Ni and Zongping Shao, with Hong Kong Polytechnic University and Nanjing Tech University, respectively, have published a Perspective piece in the same jou
Tesla has applied for a patent on new electrolyte solutions for a new lithium metal or anode-free battery cell. Over the last year, we have been reporting on Teslas battery research partner, Jeff Dahn and his team at Dalhousie University, unveiling the impressive results of tests on a new battery cell that could last over […]
Aromatic esters are a versatile group of compounds that are commonly used as feedstock in the chemical industry. However, high costs, low product yields, and harsh reaction conditions impede the production of pure-form aromatic esters. Recently, scientists in Japan have developed a new, practical catalytic reaction, called the ''ester dance reaction,'' to achieve a high yield of aromatic esters from low-cost starting materials.
A dramatic oil spill, such as the Deepwater Horizon accident in the Gulf of Mexico a decade ago, can dominate headlines for months while scientists, policymakers and the public fret over what happens to all that oil in the environment. However, far less attention is paid to the fate of a petroleum product that has been spread deliberately across the planet for decades: asphalt binder.
Why does laundry that dries outdoors in the sunshine smell so nice? Researchers conducted an experiment to find out.
In order to accelerate the systematic development of drugs, the MX team at the Helmholtz-Zentrum Berlin (HZB) and the Drug Design Group at the University of Marburg have established a new substance library. It consists of 1103 organic molecules that could be used as building blocks for new drugs. The MX team has now validated this library in collaboration with the FragMAX group at MAX IV. The substance library of the HZB is available for research worldwide and also plays a role in the search for
Cardiff University scientists have devised a new way of making reactions up to 70 times faster by using state-of-the-art equipment to spin chemicals around.
They discovered the messy environment of a chemical reaction can actually change the shape of a catalytic nanoparticle in a way that makes it more active. Replacing the expensive metals that break down exhaust gases in catalytic converters with cheaper, more effective materials is a top priority
A hemispherical vanadium oxide cluster has a cavity that can accommodate a bromine molecule. It was found that a bromine molecule trapped in the cavity was polarized and that an alkane molecule like pentane, butane and propane could be brominated with the bromine molecule in the cavity with a selectivity differing from ordinary bromination. The present findings are expected to be useful for polarization of small molecules and design of highly functional catalysts.
Skoltech scientists in collaboration with researchers from the University of Stuttgart showed that the concentration of short-lived ions (H3O+ and OH-) in pure liquid water is much higher than that assumed to evaluate the pH, hence significantly changing our understanding of the dynamical structure of water.
Ketones are of great importance as building blocks in synthetic organic chemistry and biocatalysis. Most ketones cannot easily be quantitatively assayed due to the lack of visible photometric properties. Effective high-throughput assay (HTA) development is therefore necessary for ketone determination.
Metalloenzyme can couple dioxygen activation to substrate functionalization, which often exhibits unrivaled efficiency, even at ambient conditions.
Suitable catalysts are of great importance for efficient power-to-X applicationsbut the molecular processes occurring during their use have not yet been fully understood. Using X-rays from a synchrotron particle accelerator, scientists of the Karlsruhe Institute of Technology (KIT) have now been able to observe for the first time a catalyst during the Fischer-Tropsch reaction that facilitates the production of synthetic fuels under industrial conditions. The test results are intended to use for
Chinese researchers had achieved site- and spatial- selective integration of earth-abundant metal ions in semiconductor quantum dots (QDs) for efficient and robust photocatalytic H<sub
/PRNewswire/ -- Nanovis, a unique technology company focused on nanotechnology for improving bone growth and fighting infection, today reported a record sales...
Activities in the field of artificial intelligence, like teaching robots to walk, demand ever more powerful, yet at the same time more economical computer chips. While the optimization of conventional microelectronics is slowly reaching its physical limits, nature offers us a blueprint how information can be processed and stored efficiently: our own brain. For the first time, scientists at TU Dresden and Helmholtz-Zentrum Dresden-Rossendorf (HZDR) have successfully imitated the functioning of ne
July 13, 2020Researchers at Columbia Engineering and Montana State University report today that they have found that placing sufficient strain in a 2-D materialtungsten diselenide (WSe2)creates localized states that can yield single-photon emitters. Using sophisticated optical microscopy techniques developed at Columbia over the past three years, the team was able to directly image these states for the first time, revealing that even at room temperature they are highly tunable and act as quantum
/PRNewswire/ -- The "Technology Landscape, Trends and Opportunities in the Global Carbon Nanotube (CNT) Market" report has been added to...
Understanding the optimal process for fabricating coupled nanocrystal solids could help researchers to improve optoelectronics devices.
A research team led by the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) has developed a technique that could lead to new electronic materials that surpass the limitations imposed by Moore's Law, which predicted in 1975 that the number of transistors packed into a tiny silicon-based computer chip would double every two years. Their findings were reported in the journal Nature Communications.
Wood and bacteria will help, too.
LED lamps are lighting up the world more and more. Global LED sales in residential lighting have risen from five percent of the market in 2013 to 40 percent in 2018, according to the International Energy Agency, and other sectors mirror these trends. An unmatched energy efficiency and sturdiness have made LED lights popular with consumers.
According to the United Nations, about one-fifth of the world's population lives in areas where water is scarce. Therefore, technologies to produce clean water from undrinkable sources, such as seawater, river or lake water, and contaminated water, are urgently needed. Now, researchers reporting in <i
Water is vital to the survival of life. However, water scarcity has become a major problem in modern society. Today, one-fifth of the world's population lives in water-deficient areas, especially in areas where there is no electricity. For people in such areas, access to clean drinking water is o
Materials scientists come up with a potentially useful new form of carbon
The air around us is still getting more and more polluted. No wonder many scientists strive to find a way to purify it. Thanks to the work of an international team led by prof. Juan Carlos Colmenares from the Institute of Physical Chemistry, Polish Academy of Sciences, we are a big step closer to achieve this goal. They found a way to make an efficient reactive adsorbent able to purify the air from various toxic compounds, cheaply, and effectively.
Researchers at Eindhoven University of Technology developed a tiny plastic robot, made of responsive polymers, which moves under the influence of light and magnetism. In the future this 'wireless aquatic polyp' should be able to attract and capture contaminant particles from the surrounding liquid or pick up and transport cells for analysis in diagnostic devices. The researchers published their results in the journal PNAS.
alcium carbonate particles are among the most promising bioactive compounds. However, before their use for drug delivery, their toxicity should be established, as well as their distribution inside laboratory animals. A team of investigators from ITMO University's Department of Physics and Engineering and Russian Scientific Center of Radiology and Surgical Technologies has developed novel approaches to load calcium carbonate particles with model radionuclides and studied the biodistribution of t
Composite membranes for CO2 separation contain different functional layers in their structure (e.g. porous mechanical support, selective layer etc.). We found that when selective layer in composite membrane is made ultimately thin - it forms specific interface with supporting gutter polymer, and this structure shows unexpectedly high selectivity towards CO2 over nitrogen. This new finding provides the way to develop better membranes for CO2 capture.
Researchers have designed a low-cost and easily accessible biosensor that can collect health data in real-time using just paper and a pencil.
Researchers at the University of Liverpool have uncovered the molecular architecture and organisational landscape of thylakoid membranes from a model cyanobacterium in unprecedented detail. The study, which is published in Nature Plants, could help researchers find new and improved artificial photosynthetic technologies for energy production.
Biochemists at Martin Luther University Halle-Wittenberg (MLU) have used a standard electron cryo-microscope to achieve surprisingly good images that are on par with those taken by far more sophisticated equipment. They have succeeded in determining the structure of ferritin almost at the atomic level. Their results were published in the journal ''PLOS ONE''.
A research group led by Daniel Aili, associate professor at Linköping University, has developed a bioink to print tissue-mimicking material in 3D printers. The scientists have developed a method and a material that allow cells to survive and thrive.
Thin film coatings do more than add color to walls. For example, they can be used as pharmaceutical devices. How these coatings dry can change their properties, which is especially important for films used in drug delivery. Lehigh University engineering researchers studying the in situ drying behavior of thin film coatings are visualizing particle interactions with groundbreaking precision. Their findings could impact the development of drug delivery technology.
Alzheimer's disease (AD) is one of the biggest global public health challenges. However, the pathogenesis of AD is still unclear.
In nature, colors play a vital role in behaviors such as pollination, signaling for mating and defense against predators. Colors are also an important factor in scientific research that can provide the basis for novel printing and anti-counterfeiting applications.
Scientists have developed a high-tech removal approach for painful kidney stones best described as ultrasound tweezers. Here's how they work.
Microparticles offer a promising way to deliver multiple doses of a drug or vaccine at once, because they can be designed to release their payload at specific intervals. However, the particles, which are about the size of a grain of sand, can be difficult to inject because they can get clogged in a typical syringe.