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Categories: Computer Science: Encryption, Geoscience: Geomagnetic Storms
Published How do electrons close to Earth reach almost the speed of light?
(via sciencedaily.com) In the Van Allen radiation belts, electrons can reach almost the speed of light. Researchers have revealed conditions for such strong accelerations. They had demonstrated in 2020: during solar storm plasma waves play a crucial role. However, it remained unclear why ultra-relativistic electron energies are not achieved in all solar storms. They now show: extreme depletions of the background plasma density are crucial.
Published Say goodbye to the dots and dashes to enhance optical storage media
(via sciencedaily.com) A new technology is aimed at modernizing the optical digital storage technology. This advancement allows for more data to be stored and for that data to be read at a quicker rate. Rather than using the traditional dots and dashes as commonly used in these technologies, the innovators encode information in the angular position of tiny antennas, allowing them to store more data per unit area.
Published Researchers improve data readout by using 'quantum entanglement'
(via sciencedaily.com) Researchers say they have been able to greatly improve the readout of data from digital memories - thanks to a phenomenon known as 'quantum entanglement'.
Published Physicists observe competition between magnetic orders
(via sciencedaily.com) Two-dimensional materials, consisting of a single layer of atoms, have been booming in research for years. They possess novel properties that can only be explained with the help of the laws of quantum mechanics. Researchers have now used ultracold atoms to gain new insights into previously unknown quantum phenomena. They found out that the magnetic orders between two coupled thin films of atoms compete with each other.
Published The upside of volatile space weather
(via sciencedaily.com) Although stellar flares are typically viewed as a detriment to habitability, study shows 'life might still have a fighting chance.' Researchers find that flares drive a planets atmospheric composition to a new chemical equilibrium.
Published A biochemical random number
(via sciencedaily.com) Original source Scientists have generated a huge true random number using DNA synthesis. It is the first time that a number of this magnitude has been created by biochemical means.
Published Researchers simulate privacy leaks in functional genomics studies
(via sciencedaily.com) Original source Researchers demonstrate that it's possible to de-identify raw functional genomics data to ensure patient privacy. They also demonstrate how these raw data could be linked back to specific individuals through their gene variants by something as simple as an abandoned coffee cup if these sanitation measures are not put in place.
Published Can ripples on the sun help predict solar flares?
(via sciencedaily.com) Scientists discovered in 1996 that sunquakes are linked to solar flares. Now, using helioseismic holography, scientists have analyzed a 2011 flare and shown that the impulsive source that generated the sunquake, and the refracted acoustic waves that later rippled the solar surface, was submerged 1,000 kilometers below the photosphere and flare. Further sunquake study could reveal if submerged sources are common and whether they can predict the appearance of flares and potential impact on Earth.
Published NASA's IRIS spots nanojets: Shining light on heating the solar corona
(via sciencedaily.com) Researchers report the first ever clear images of nanojets -- bright thin lights that travel perpendicular to the magnetic structures in the solar atmosphere, called the corona -- in a process that reveals the existence of one of the potential coronal heating candidates: nanoflares.
Published Solar storm forecasts for Earth improved with help from the public
(via sciencedaily.com) Scientists used observations recorded by members of the public to increase accuracy of computer model predictions of when harmful CMEs will hit Earth.
Published First physics-based method for predicting large solar flares
(via sciencedaily.com) A research team recently succeeded in developing the first physics-based model that can accurately predict imminent large solar flares, which can cause severe space weather disturbances affecting Earth.
Published Researchers track slowly splitting 'dent' in Earth's magnetic field
(via sciencedaily.com) Earth's magnetic field acts like a protective shield around the planet, repelling and trapping charged particles from the Sun. But over South America and the southern Atlantic Ocean, an unusually weak spot in the field -- called the South Atlantic Anomaly, or SAA -- allows these particles to dip closer to the surface than normal.
Published NASA data helps new model predict big solar flares
(via sciencedaily.com) Scientists have developed a new model that successfully predicted seven of the Sun's biggest flares from the last solar cycle, out of a set of nine. With more development, the model could be used to one day inform forecasts of these intense bursts of solar radiation.
Published Breakthrough method for predicting solar storms
(via sciencedaily.com) Extensive power outages and satellite blackouts that affect air travel and the internet are some of the potential consequences of massive solar storms. These storms are believed to be caused by the release of enormous amounts of stored magnetic energy due to changes in the magnetic field of the sun's outer atmosphere - something that until now has eluded scientists' direct measurement. Researchers believe this recent discovery could lead to better 'space weather' forecasts in the future.
Published Alaskan seismometers record the northern lights
(via sciencedaily.com) An aurora sightseeing tour leader in Alaska, was lucky enough to photograph a 'eruption' of brilliant pink light in the night skies one night in February.
Published South Atlantic anomalies existed 8 - 11 million years ago
(via sciencedaily.com) Research has revealed that strange behavior of the magnetic field in the South Atlantic region existed as far back as eight to 11 million years ago, suggesting that today's South Atlantic Anomaly is a recurring feature and unlikely to represent an impending reversal of the Earth's magnetic field.
Published Mystery of solar cycle illuminated
(via sciencedaily.com) The sun's convection zone plays a key role in the generation and evolution of the Sun's magnetic field. Analyzing data sets spanning more than 20 years, researchers have obtained the most comprehensive picture of the north-south flow of plasma in the convection zone ever. The flow goes around the convection zone in each hemisphere in about 22 years.
Published New 'sun clock' quantifies extreme space weather switch on-off
(via sciencedaily.com) Extreme space weather events can significantly impact systems such as satellites, communications systems, power distribution and aviation. They are driven by solar activity which is known to have an irregular but roughly 11 year cycle. By devising a new, regular 'sun clock', researchers have found that the switch on and off of periods of high solar activity is quite sharp, and are able to determine the switch on-off times.
Published New research deepens understanding of Earth's interaction with the solar wind
(via sciencedaily.com) Scientists have reproduced a process that occurs in space to deepen understanding of what happens when the Earth encounters the solar wind.
Published New sunspots potentially herald increased solar activity
(via sciencedaily.com) On May 29, 2020, a family of sunspots -- dark spots that freckle the face of the Sun, representing areas of complex magnetic fields -- sported the biggest solar flare since October 2017. Although the sunspots are not yet visible (they will soon rotate into view over the left limb of the Sun), NASA spacecraft spotted the flares high above them.