Showing 20 articles starting at article 581
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Categories: Geoscience: Earthquakes, Space: General
Published Want to know how light works? Try asking a mechanic
(via sciencedaily.com) Physicists use a 350-year-old theorem that explains the workings of pendulums and planets to reveal new properties of light waves.
Published Rewriting the past and future of the universe
(via sciencedaily.com) Original source New research has improved the accuracy of the parameters governing the expansion of the Universe. More accurate parameters will help astronomers determine how the Universe grew to its current state, and how it will evolve in the future.
Published New type of star gives clues to mysterious origin of magnetars
(via sciencedaily.com) Original source Magnetars are the strongest magnets in the Universe. These super-dense dead stars with ultra-strong magnetic fields can be found all over our galaxy but astronomers don't know exactly how they form. Now, using multiple telescopes around the world, researchers have uncovered a living star that is likely to become a magnetar. This finding marks the discovery of a new type of astronomical object -- massive magnetic helium stars -- and sheds light on the origin of magnetars.
Published Using supernovae to study neutrinos' strange properties
(via sciencedaily.com) In a new study, researchers have taken an important step toward understanding how exploding stars can help reveal how neutrinos, mysterious subatomic particles, secretly interact with themselves.
Published Hundred-year storms? That's how long they last on Saturn
(via sciencedaily.com) Megastorms regularly appear on Saturn, marring the relatively bland surface before disappearing. But radio observations show that the storms have long-lasting effects deeper in the atmosphere, in particular in the distribution of ammonia. Using NRAO's Very Large Array, astronomers see such impacts from storms that happened hundreds of years ago. The findings will help explain the differences between storms on the gas giants Saturn and Jupiter.
Published Could artificially dimming the sun prevent ice melt?
(via sciencedaily.com) Original source With methods of so-called geoengineering, the climate could theoretically be artificially influenced and cooled. Researchers have now investigated whether it would be possible to prevent the melting of the West Antarctic ice sheet by artificially 'dimming the sun'. The results show that artificial influence does not work without decarbonization and entails high risks.
Published After seventeen years, a spacecraft makes its first visit home
(via sciencedaily.com) On Aug. 12, 2023, NASA's STEREO-A spacecraft will pass between the Sun and Earth, marking the first Earth flyby of the nearly 17-year-old mission. The visit home brings a special chance for the spacecraft to collaborate with NASA missions near Earth and reveal new insights into our closest star.
Published Study ties fracking to another type of shaking
(via sciencedaily.com) Original source New research confirms fracking causes slow, small earthquakes or tremors, whose origin was previously a mystery to scientists. The tremors are produced by the same processes that could create large, damaging earthquakes.
Published Possible seasonal climate patterns on early Mars
(via sciencedaily.com) Original source New observations of mud cracks made by the Curiosity Rover show that high-frequency, wet-dry cycling occurred in early Martian surface environments, indicating that the red planet may have once seen seasonal weather patterns or even flash floods.
Published Webb reveals colors of Earendel, most distant star ever detected
(via sciencedaily.com) NASA's James Webb Space Telescope has followed up on observations by the Hubble Space Telescope of the farthest star ever detected in the very distant universe, within the first billion years after the big bang. Webb's NIRCam (Near-Infrared Camera) instrument reveals the star to be a massive B-type star more than twice as hot as our Sun, and about a million times more luminous.
Published Physicists demonstrate how sound can be transmitted through vacuum
(via sciencedaily.com) Original source A classic movie was once promoted with the punchline: 'In space, no one can hear you scream'. Physicists have now demonstrated, to the contrary, that in certain situations sound can be transmitted strongly across a vacuum region!
Published Chemical contamination on International Space Station is out of this world
(via sciencedaily.com) Original source Concentrations of potentially harmful chemical compounds in dust collected from air filtration systems on the International Space Station (ISS) exceed those found in floor dust from many American homes, a new study reveals.
Published Geomagnetic field protects Earth from electron showers
(via sciencedaily.com) Original source Geophysicists studied the activity of high energy electrons and clarified the unexpected protective role of the geomagnetic field surrounding the Earth.
Published Gas streamers feed triple baby stars
(via sciencedaily.com) Original source New observations and simulations of three spiral arms of gas feeding material to three protostars forming in a trinary system have clarified the formation of multi-star systems.
Published Scientists discover the highest-energy light coming from the sun
(via sciencedaily.com) New research details the discovery of the highest-energy light ever observed from the sun. The international team behind the discovery also found that this type of light, known as gamma rays, is surprisingly bright. That is, there's more of it than scientists had previously anticipated.
Published Study examines Earth and Mars to determine how climate change affects the paths of rivers
(via sciencedaily.com) Original source The study investigated why the paths of meandering rivers change over time and is a step toward understanding what the hydroclimate on Mars was like when there was still surface water.
Published New exoplanet discovery builds better understanding of planet formation
(via sciencedaily.com) An international team of scientists have discovered an unusual Jupiter-sized planet orbiting a low-mass star called TOI-4860, located in the Corvus constellation.
Published Fiber optic cables detect and characterize earthquakes
(via sciencedaily.com) Original source The same fiber optic networks that provide internet can simultaneously act as earthquake sensors, as demonstrated in a new study.
Published California's winter waves may be increasing under climate change
(via sciencedaily.com) Original source A new study uses nearly a century of data to show that the average heights of winter waves along the California coast have increased as climate change has heated up the planet.
Published How to distinguish slow and fast earthquakes
(via sciencedaily.com) Original source Slow earthquakes are slow-slip phenomena that last many days or months, and you barely notice them. In 2007, researchers proposed how the magnitude and duration of earthquakes vary, which can help differentiate slow and fast earthquakes. Seismologists now bolster the proposed relation with more data. They suggest the presence of a speed limit to slow earthquakes and reveal physical processes that differentiate slow and fast earthquakes. Since slow earthquakes could indicate future fast earthquakes, monitoring and understanding them helps accurately forecast devastating earthquakes and tsunamis.