https://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. The evolutionary histories of Earth and Mercury differ fundamentally. The smallest planet, closest to the sun, likely began cooling early on, much like a setting pudding: As early as about 1 billion years after its formation, Mercury's volcanic activity came to a halt, and a solid, continuous "rock skin" formed on the planet's surface. Earth's crust, on the other hand, is still in motion: Volcanism and plate tectonics are constantly stirring up the "Earth pudding." Exactly what Mercury's unique volcanic past looked like and how it shaped its current appearance remain unclear. However, researchers can gain important clues from the composition of its surface. https://phys.org/news/2026-08-mercury-crust-deeper-hotter-volcanic.html Planetary Sciences Fri, 28 Aug 2026 12:40:01 EDT news707135642 A team of researchers led by the University of Hawaiʻi at Mānoa Department of Chemistry has uncovered a faster way large carbon-based molecules may form in space, helping solve a long-standing mystery about how some of the building blocks of the universe grow. https://phys.org/news/2026-08-discovery-reveals-rapid-pathways-complex.html Astrobiology Thu, 27 Aug 2026 18:30:02 EDT news707070961 Most of the stars in our Milky Way galaxy sit neatly on a flat plane. But the space around our galaxy is much more chaotic. Rogue bands of stars called "stellar streams" orbit the Milky Way much like planets in our solar system orbit the sun. https://phys.org/news/2026-08-milky-gravity-mimic-dark-clues.html Astronomy Thu, 27 Aug 2026 17:00:01 EDT news707063221 During the Aug. 12 total solar eclipse over Europe, scientists aimed to study a long-standing mystery: why the sun's outer atmosphere, the corona, is far hotter than its visible surface. Capturing the data they needed meant being in exactly the right place at the right time. https://phys.org/news/2026-08-nasa-johnson-moon-shadow-eclipse.html Space Exploration Thu, 27 Aug 2026 11:40:04 EDT news707047621 Physics is most readily applied to relatively simple systems: a pendulum, two electrons colliding or the structure of the solar system. But when systems become complicated—when many particles interact with one another, in condensed matter systems such as gases and fluids or in the cosmology of the early universe—simplifications can be made using a technique called classical or extended mean-field theory. https://phys.org/news/2026-08-simple-neural-networks-field-theory.html General Physics Thu, 27 Aug 2026 07:20:06 EDT news706956708 The Roman Space Telescope is designed to directly image exoplanets using complex optomechanical systems developed by the Max Planck Institute for Astronomy https://phys.org/news/2026-08-roman-telescope-aims-image-exoplanets.html Astronomy Wed, 26 Aug 2026 15:00:01 EDT news706962003 Stanford researchers have offered an explanation for why some sizzling, lava-covered worlds nestled tightly around their stars can retain their atmospheres. At such close quarters, intense stellar radiation should strip away a planet's air. https://phys.org/news/2026-08-lava-exoplanets-retain-atmospheres-billions.html Astrobiology Wed, 26 Aug 2026 11:40:04 EDT news706957007 It has been a busy month for astronomy. In the midst of an eclipse season bookended by the total solar eclipse on Aug. 12 and the deep partial lunar eclipse coming up this week on Aug. 28, an outbound comet hanging high in the dawn sky just refuses to die: 220P/McNaught. https://phys.org/news/2026-08-comet-220p-mcnaught-encore.html Astronomy Wed, 26 Aug 2026 10:20:11 EDT news706947961 Planets form from disks of gas and dust around young stars, but the gas needed for growth does not last forever. New observations from NASA's James Webb Space Telescope (JWST) now offer a new view of how this gas escapes and how the process changes as young planetary systems develop. https://phys.org/news/2026-08-jwst-reveals-planets.html Astronomy Tue, 25 Aug 2026 17:50:01 EDT news706897742 When a star reaches its final stages of life, it ends in a bright, powerful explosion called a supernova and scatters material across the universe. A new study led by a University of Hawai'i at Mānoa researcher has discovered that the moon's mixed-up soil can be read as a cosmic time capsule for exploding stars. The work is published in the journal Physical Review Letters. https://phys.org/news/2026-08-lunar-soil-cosmic-capsule-stars.html Astronomy Tue, 25 Aug 2026 13:40:05 EDT news706874864 As wildfire smoke plumes travel thousands of miles, sunlight and atmospheric chemistry bleach their color, strip away their campfire aroma and add them to the mix of urban smog. https://phys.org/news/2026-08-flames-haze-wildfire-health-ways.html Environment Tue, 25 Aug 2026 13:40:03 EDT news706877882 Sometimes images are released before anyone realizes they have been photobombed, meaning something unexpected showed up in the background. A team of researchers found a naked photobombing comet in publicly available archival data from the Subaru Telescope, resulting not in mirth but in serious scientific discoveries. https://phys.org/news/2026-08-naked-photobombing-comet-image.html Astronomy Tue, 25 Aug 2026 13:20:05 EDT news706874587 A NASA-led team hopes to take a shortcut to direct imaging of extrasolar Earth-like planets. The idea is to use what they call a hybrid telescope composed of an orbital starshade coupled with the next-generation extremely large ground-based optical telescopes. https://phys.org/news/2026-08-nasa-starshade-enable-astronomers-image.html Space Exploration Mon, 24 Aug 2026 19:20:01 EDT news706784267 Around 4.6 billion years ago, the solar system was little more than a giant ball of gas and dust. Over the next few million years, this "solar nebula" underwent a huge transformation, flattening into a disk of matter that then condensed to form the central sun and orbiting planets. https://phys.org/news/2026-08-meteorite-magnetism-sun.html Planetary Sciences Mon, 24 Aug 2026 19:10:01 EDT news706810983 At the center of our solar system, the sun influences every planet that orbits it. In two recent studies, scientists uncovered how ancient events in the sun's history may have helped create Earth's unique climate and driven previously unexplained climatic shifts. https://phys.org/news/2026-08-sun-galactic-journey-superflare-youth.html Astronomy Mon, 24 Aug 2026 18:50:01 EDT news706810501 In the opening scene of American writer Kim Stanley Robinson's "The Ministry for the Future," a heat wave combined with a breakdown of the electrical grid in India kills 20 million people. The devastation causes the world's nations to unite to combat climate change. https://phys.org/news/2026-08-world-inches-catastrophic-climate-events.html Environment Mon, 24 Aug 2026 12:42:53 EDT news706794146 A world-first trial of floating wetland pods in wastewater lagoons shows they cut greenhouse gas emissions by more than a quarter, highlighting their potential as a nature-based solution for decarbonizing the water sector. https://phys.org/news/2026-08-wetlands-slash-wastewater-greenhouse-gas.html Environment Mon, 24 Aug 2026 12:20:07 EDT news706784893 A new study has reconciled a long-standing paradox in the South Asian summer monsoon cycle. Climate scientists have discovered why geological records from land and sea have told opposite stories about monsoons throughout history and found that rising temperatures over Southern Africa reduce upwelling in the Arabian Sea, which could damage marine productivity and fisheries. The work is published in the journal Proceedings of the National Academy of Sciences. https://phys.org/news/2026-08-climate-scientists-monsoon-puzzle-fisheries.html Earth Sciences Mon, 24 Aug 2026 11:20:05 EDT news706788601 Of Jupiter's four Galilean moons, Callisto is the one that gets the least attention. Io is constantly being resurfaced by volcanoes. Europa has a giant liquid water ocean. And Ganymede has its own magnetic field that interacts with its parent planet in weird ways. Callisto, by comparison, seems sedate, with its ancient, crater-saturated surface seemingly frozen in time. But new data from the James Webb Space Telescope (JWST) shows that even this most benign of the Big Four moons is more active than previously realized. https://phys.org/news/2026-08-jwst-peeks-callisto-ancient-scars.html Planetary Sciences Sun, 23 Aug 2026 11:00:04 EDT news706275524 The surface of Mars is home to some of the most breathtaking and awe-inspiring landscapes in the solar system. This is primarily because the Red Planet lacks several resurfacing processes that Earth possesses, including plate tectonics, volcanism and flowing water. https://phys.org/news/2026-08-mars-curiosity-rover-massive-field.html Planetary Sciences Sat, 22 Aug 2026 14:00:04 EDT news706266241 Now it's the moon's turn to pull a disappearing act. After being shut out of this month's total solar eclipse, the Americas will have the best seats in the celestial house when Earth's shadow briefly envelops the moon. Almost the entire lunar surface will be masked Thursday night into Friday—a whopping 96%—making this an especially deep partial eclipse. https://phys.org/news/2026-08-total-lunar-eclipse-americas-prime.html Space Exploration Sat, 22 Aug 2026 10:38:34 EDT news706613876 Seismic waves produced by thunderstorms, called thunderquakes, can be used as a novel source for seismic imaging, according to a new study led by researchers at Penn State. https://phys.org/news/2026-08-thunderquakes-enable-seismic-imaging-earth.html Earth Sciences Fri, 21 Aug 2026 14:00:01 EDT news706362481 Over the past three decades, computer models of planetary system formation have gone from fairly crude representations to sophisticated simulations using thousands of different starting points. https://phys.org/news/2026-08-solar-earth-fluke.html Planetary Sciences Fri, 21 Aug 2026 09:40:05 EDT news706520402 During a coronal mass ejection (CME), the sun hurls billions of tons of magnetized plasma into space. These eruptions are among the most powerful events in the solar system, and when they are aimed toward Earth, they can seriously threaten the satellites and power grids we depend on. For now, it remains notoriously difficult to predict how these eruptions evolve over time—and, in turn, whether they might be heading toward us. https://phys.org/news/2026-08-interplanetary-spacecraft-capture-coronal-mass.html Space Exploration Fri, 21 Aug 2026 08:50:42 EDT news706521006 Japan's ambitious mission to collect and bring back samples from one of Mars' moons will lift off Oct. 20, the space agency announced Thursday. https://phys.org/news/2026-08-japan-probe-mars-moons-october.html Space Exploration Thu, 20 Aug 2026 17:00:05 EDT news706455400 Welcome back to our series on interstellar travel! In our first installment, we examined attempts to realize nuclear propulsion and how the technology could be used to reach the nearest star. In our second, we examined how fusion power has also been considered a means of propelling spacecraft to relativistic speeds (a fraction of the speed of light). In both cases, these proposals paralleled Cold War developments in rocketry and nuclear armaments, as they did for most space age advancements. https://phys.org/news/2026-08-interstellar-iv-solar-magnetic-energy.html Astronomy Thu, 20 Aug 2026 10:20:09 EDT news706437782 A new study from Monash University has delivered the most complete and accurate digital map of Earth's windblown sand dunes to date. The research, published in Nature Communications, answers long-standing questions about why dunes form where they do, unlocking key insights into climate conditions on Earth and other planets. https://phys.org/news/2026-08-global-sand-dunes-reveals-clues.html Planetary Sciences Thu, 20 Aug 2026 10:20:03 EDT news706436221 Astronomers have discovered a chemically rich collection of sulfur-bearing molecules surrounding the rare massive star HD 87643. The observations include the first detection of sulfur monoxide and sulfur dioxide around a B[e] supergiant. The paper was published in The Astrophysical Journal Letters on July 1. https://phys.org/news/2026-08-alma-uncovers-sulfur-rare-class.html Astronomy Thu, 20 Aug 2026 09:20:07 EDT news706267123 Remember the "Wow!" signal? That high-energy radio signature occurred in 1977, when Earth was much "quieter" in the radio band. If it happened today, it probably wouldn't even move the needle on the background noise of human radio chatter. Signals from satellites, radar and other human technology have crowded out extraterrestrial radio signals, limiting our ability to monitor the heavens for signals like the still-unexplained one received in 1977. What's more, the ionosphere partially blocks lower-frequency radio signals, making them even harder to detect from the ground. https://phys.org/news/2026-08-radio-telescope-moon.html Astronomy Wed, 19 Aug 2026 22:00:01 EDT news706373101 Photovoltaic technology, most commonly seen as bulky solar panels used on solar farms, is expected to become a dominant energy source by 2050. But these panels are often installed on land that might otherwise be used to grow crops and feed a burgeoning population. https://phys.org/news/2026-08-solar-panels-cool-crops-workers.html Earth Sciences Wed, 19 Aug 2026 18:40:03 EDT news706367821