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Categories: Physics: Acoustics and Ultrasound, Space: The Solar System
Published Physicists describe new type of aurora
(via sciencedaily.com) The famed northern and southern lights have been studied for millennia, but they still hold secrets. Physicists describe a new phenomenon they call 'diffuse auroral erasers,' in which patches of the background glow are blotted out, then suddenly intensify and reappear.
Published Scientists model Saturn's interior, explain planet's unique magnetic field
(via sciencedaily.com) New simulations offer an intriguing look into Saturn's interior, suggesting that a thick layer of helium rain influences the planet's magnetic field.
Published Release of drugs from a supramolecular cage
(via sciencedaily.com) How can a highly effective drug be transported to the precise location in the body where it is needed? Chemists now present a solution using a molecular cage that opens through ultrasonification.
Published Focused ultrasound enables precise noninvasive therapy
(via sciencedaily.com) New research demonstrates that noninvasive neuromodulation via low-intensity ultrasound can have cell-type selectivity in manipulating neurons.
Published New lunar map to help guide future exploration missions
(via sciencedaily.com) A new map of the Schrodinger basin of the moon could help guide future exploration missions.
Published Hubble watches how a giant planet grows
(via sciencedaily.com) NASA's Hubble Space Telescope is giving astronomers a rare look at a Jupiter-sized, still-forming planet that is feeding off material surrounding a young star.
Published Measuring the Moon's nano dust is no small matter
(via sciencedaily.com) Researchers are now measuring tinier moon dust particles than ever before, a step toward more precisely explaining the Moon's apparent color and brightness. This in turn might help improve tracking of weather patterns and other phenomena by satellite cameras that use the Moon as a calibration source.
Published Carbon dioxide-rich liquid water in ancient meteorite
(via sciencedaily.com) Scientists detect small pockets of carbon dioxide-rich liquid water in a meteorite dating from the early solar system.
Published Enormous flare from sun's nearest neighbor breaks records
(via sciencedaily.com) On May 1, 2019, researchers observed a record-setting flare from the star Proxima Centauri -- a burst of energy roughly 100 times more powerful than any similar event seen from Earth's sun.
Published Using sound waves to make patterns that never repeat
(via sciencedaily.com) Mathematicians and engineers have teamed up to show how ultrasound waves can organize carbon particles in water into a sort of pattern that never repeats. The results, they say, could result in materials called 'quasicrystals' with custom magnetic or electrical properties.
Published New research reveals secret to Jupiter's curious aurora activity
(via sciencedaily.com) Jupiter's polar cap is threaded in part with closed magnetic field lines rather than entirely with open magnetic field lines, new research finds.
Published New study ties solar variability to the onset of decadal La Nina events
(via sciencedaily.com) A new study shows a correlation between the end of solar cycles and a switch from El Nino to La Nina conditions in the Pacific Ocean, suggesting that solar variability can drive seasonal weather variability on Earth.
Published First X-rays from Uranus discovered
(via sciencedaily.com) Astronomers have detected X-rays from Uranus using NASA's Chandra X-ray Observatory. This result may help scientists learn more about this enigmatic ice giant planet in our solar system.
Published Scientists discover a new auroral feature on Jupiter
(via sciencedaily.com) Astronomers have detected new faint aurora features, characterized by ring-like emissions, which expand rapidly over time. Scientists determined that charged particles coming from the edge of Jupiter's massive magnetosphere triggered these auroral emissions.
Published Ocean currents predicted on Saturn's moon Enceladus
(via sciencedaily.com) New research could inform where to one day search for signs of life on Saturn's moon Enceladus.
Published The case of the cloudy filters: Solving the mystery of the degrading sunlight detectors
(via sciencedaily.com) Original source Sun-facing satellites monitor the Sun's ultraviolet (UV) light to give us advance warning of solar storms. But over the course of just a year or two, the metal filters in the detectors mysteriously lose their ability to transmit UV light. Now, scientists have found the first evidence indicating that carbonization is not the problem.
Published Reading minds with ultrasound: A less-invasive technique to decode the brain's intentions
(via sciencedaily.com) A new brain imaging application uses ultrasound to predict intended movements before they happen.
Published Powerful stratospheric winds measured on Jupiter
(via sciencedaily.com) Astronomers have now directly measured winds in Jupiter's middle atmosphere. By analyzing the aftermath of a comet collision from the 1990s, the researchers have revealed incredibly powerful winds, with speeds of up to 1450 kilometers an hour, near Jupiter's poles. They could represent a 'unique meteorological beast in our Solar System'.
Published Ultrasound has potential to damage coronaviruses, study finds
(via sciencedaily.com) A new study suggests coronaviruses, including the virus that causes COVID-19, may be vulnerable to ultrasound vibrations. Simulations suggest ultrasound waves at medical imaging frequencies can cause the virus' shell and spikes to collapse and rupture.
Published Jupiter's Great Red Spot feeds on smaller storms
(via sciencedaily.com) The stormy, centuries-old maelstrom of Jupiter's Great Red Spot was shaken but not destroyed by a series of anticyclones that crashed into it over the past few years, according to a new study.