Showing 20 articles starting at article 681
< Previous 20 articles Next 20 articles >
Categories: Physics: Acoustics and Ultrasound, Space: The Solar System
Published Two largest Mars-quakes to date recorded from planet's far side
(via sciencedaily.com) The seismometer placed on Mars by NASA's InSight lander has recorded its two largest seismic events to date: a magnitude 4.2 and a magnitude 4.1 Mars-quake. The pair are the first recorded events to occur on the planet's far side from the lander and are five times stronger than the previous largest event recorded.
Published A roadmap for deepening understanding of a puzzling universal process
(via sciencedaily.com) Scientists have detailed a roadmap for untangling a key aspect of magnetic recognition that could deepen insight into the workings of the cosmos.
Published The physics of a singing saw
(via sciencedaily.com) Researchers have used the singing saw to demonstrate how the geometry of a curved sheet, like curved metal, could be tuned to create high-quality, long-lasting oscillations for applications in sensing, nanoelectronics, photonics and more.
Published Why Venus rotates, slowly, despite sun's powerful grip
(via sciencedaily.com) If not for the soupy, fast-moving atmosphere on Venus, Earth's sister planet would likely not rotate. Instead, Venus would be locked in place, always facing the sun the way the same side of the moon always faces Earth.
Published Jupiter's moon has splendid dunes
(via sciencedaily.com) Scientists have long wondered how Jupiter's innermost moon, Io, has meandering ridges as grand as any that can be seen in movies like 'Dune.' Now, a research study has provided a new explanation of how dunes can form even on a surface as icy and roiling as Io's.
Published Tumors partially destroyed with sound don't come back
(via sciencedaily.com) Noninvasive sound technology breaks down liver tumors in rats, kills cancer cells and spurs the immune system to prevent further spread -- an advance that could lead to improved cancer outcomes in humans.
Published Ultrasound gave us our first baby pictures can it also help the blind see?
(via sciencedaily.com) While there are no successful non-invasive therapeutics currently available for the treatment of vision loss, researchers at have come up with a new idea to address this growing problem. Currently, ophthalmologists use electronic technology to directly stimulate retinal neurons by implanting electrode devices inside the eye, a technique that requires expensive and invasive surgery. A research team is now exploring a non-surgical solution that could restore sight by using another of the five senses: Sound.
Published Neptune is cooler than we thought: Study reveals unexpected changes in atmospheric temperatures
(via sciencedaily.com) New research has revealed how temperatures in Neptune's atmosphere have unexpectedly fluctuated over the past two decades.
Published Differences between the Moon’s near and far sides linked to colossal ancient impact
(via sciencedaily.com) New research shows how the impact that created the Moon's South Pole -- Aitken basin is linked to the stark contrast in composition and appearance between the two sides of the Moon.
Published Arctic simulation of Moon-like habitat shows wellbeing sessions can improve mental health in extreme isolation
(via sciencedaily.com) Researchers are investigating the psychological impact of social isolation in harsh environments, such as on the Moon.
Published 'Ears' for rover Perseverance's exploration of Mars
(via sciencedaily.com) Scientists have built instruments to give humans eyes and a nose on Mars -- and now they are helping add ears as well.
Published Scientists connect the dots between Galilean moon, auroral emissions on Jupiter
(via sciencedaily.com) On November 8, 2020, NASA's Juno spacecraft flew through an intense beam of electrons traveling from Ganymede, Jupiter's largest moon, to its auroral footprint on the gas giant. Scientists used data from Juno's payload to study the particle population traveling along the magnetic field line connecting Ganymede to Jupiter while, at the same time, remotely sensing the associated auroral emissions to unveil the mysterious processes creating the shimmering lights.
Published Dual-mode endoscope offers unprecedented insights into uterine health
(via sciencedaily.com) A new endoscope design that combines ultrasound with optical coherence tomography can assess the structural features of the endometrium with unprecedented detail. This dual-mode endoscope could help doctors diagnose infertility problems that are related to endometrial receptivity with greater accuracy than current imaging technologies.
Published 'Prenatal' protoplanet upends planet formation models
(via sciencedaily.com) An international research team has discovered a new planet so young that it has yet to emerge from the womb of matter where it is forming. This is the youngest protoplanet discovered to date. It's location and the surrounding patterns of matter suggest that an alternative method of planet formation may be at work. This discovery could help to explain the histories and features of extrasolar planets seen around other stars.
Published Perseverance records the first ever sounds from Mars
(via sciencedaily.com) NASA's Perseverance rover, which has been surveying the surface of Mars since February 2021, has for the first time recorded the acoustic environment of the Red Planet.
Published Mercury has magnetic storms
(via sciencedaily.com) An international team of scientists has proved that Mercury, our solar system's smallest planet, has geomagnetic storms similar to those on Earth. Their finding, a first, answers the question of whether other planets, including those outside our solar system, can have geomagnetic storms regardless of the size of their magnetosphere or whether they have an Earth-like ionosphere.
Published The Rule of Two helps make spaces sound better
(via sciencedaily.com) Researchers developed a new acoustic measurement technique in a room with more acoustic combinations than there are ants on Earth.
Published Mounds of ice in craters give new insight into Mars’ past climate
(via sciencedaily.com) Newly discovered deposits of layered ice in craters scattered around Mars' southern hemisphere provide insights into how the planet's orientation controlled the planet's climate over the past 4 million years, according to a new study. The findings help scientists understand what controlled Mars' past climate, which is essential for predicting when the planet could have been habitable.
Published On Jupiter's moon Europa, 'chaos terrains' could be shuttling oxygen to ocean
(via sciencedaily.com) Researchers have built the world's first physics-based computer simulation of oxygen transport on Europa, finding that it's possible for oxygen to drain through the moon's icy shell and into its ocean of liquid water -- where it could potentially help sustain alien life -- by hitching a ride on salt water under the moon's 'chaos terrains.' The results show that not only is the transport possible, but that the amount of oxygen brought into Europa's ocean could be on a par with the quantity of oxygen in Earth's oceans today.
Published Warming oceans are getting louder
(via sciencedaily.com) Climate change is speeding sound transmission in the oceans and the way it varies over the globe with physical properties of the oceans. Two 'acoustic hotspots' of future sound speed increases are predicted east of Greenland and in the Northwest Atlantic Ocean, East of Newfoundland. In these locations, the average speed of sound is likely to increase by more than 1.5% if 'business-as-usual' high rates of greenhouse gas emissions continue through 2100.