A recent study has identified numerous previously undiscovered asteroids within Earth's orbit, including an asteroid with an orbital period around the Sun. These discoveries highlight the potential of telescopic surveys to track near-Earth objects and provide crucial data on their formation.
Researchers observed a periodic rocky near-Sun comet, 323P/SOHO, breaking apart due to intense radiation from the Sun. This process, known as thermal fracturing, may explain why there are few such comets in our Solar System.
An international team developed a new theoretical model that solves part of the 'solar problem' by considering the Sun's rotation and magnetic fields. The results reproduce the concentration of helium and lithium in the Sun's outer layers, providing insights into stellar physics.
Engineers at RMIT University discovered a bitumen blend that's both UV-resistant and withstands traffic loads. The mixture of crumb rubber from recycled tyres halves the rate of sun damage when mixed with bitumen, making it an ideal sustainable solution for roads.
A new study aims to assess the effectiveness of sun safety policies in primary schools in Wales. The project will examine what is currently being taught about sun safety and its impact on knowledge and behavior among children, teachers, staff, and school managers.
University of Oklahoma astronomer Nathan Kaib found that distant long-period comets quickly fade away as they pass through the outer solar system near Saturn's orbit. This phenomenon occurs because the Sun's heating is too weak to evaporate water-based ice on these comets, making them invisible to astronomers' searches.
Researchers at NYU Abu Dhabi's Center for Space Science have discovered high-frequency retrograde vorticity waves in the Sun that move three times faster than predicted by theory. These mysterious waves may be an important puzzle piece in understanding stars.
Researchers have solved a key part of the coronal heating problem by merging two previous theories into one. The study used six-dimensional supercomputer simulations to show how turbulence creates magnetic waves that heat the gas in the Sun's atmosphere.
Astronomers have identified a nearby Sun-like star that has paused its own cycles and entered a similar period of rare starspots, sparking hope for understanding the Sun's 70-year Maunder Minimum. Continued observation could provide crucial insights into the Sun's stellar magnetic activity, potentially affecting climate on Earth.
A new study led by NCAR suggests that many coronal loops on the Sun are actually wrinkles in a bright plasma veil, rather than distinct strands of plasma. This finding has significant implications for understanding the Sun's atmosphere and density, temperature, and other physical characteristics.
A deep learning model has been developed to infer horizontal motion on the Sun's surface using temperature and vertical motion data. The technique shows promise for future high-resolution solar observations and laboratory plasmas.
The study of Mercury's dynamic magnetosphere reveals large variations in the solar wind at perihelion and aphelion. Magnetic reconnection events, including flux transfer event 'showers', significantly contribute to the Dungey cycle and magnetosphere-surface-exosphere coupling.
Researchers discovered that a large cavity in the discs surrounding evolved binary stars could be evidence of planet formation. The presence of heavy elements on the surface of dying stars suggests that dust particles rich in these elements were trapped by planets, supporting this hypothesis.
A team of researchers from Lund University analyzed ice cores from Greenland and Antarctica to discover a massive solar storm occurring during a quiet phase about 9,200 years ago. The study challenges the current understanding that solar storms are more likely to occur during active phases of the sun.
Scientists have discovered a new type of wave that replaces electromagnetic waves called whistler waves in the solar wind, allowing for better understanding of energy flow near the sun. This discovery can help predict 'space weather' events that affect satellites and astronauts in space.
A new study by Rice University astrophysicist André Izidoro suggests that the sun had rings before planets formed, explaining many solar system features. The model simulates the solar system's formation hundreds of times and reproduces several features missed by previous models, including pressure bumps and rings.
A study published in Cancer Epidemiology, Biomarkers & Prevention found a lower risk of breast cancer among Puerto Rican women with greater sun exposure. Researchers believe this association may be linked to the production of vitamin D and its effects on inflammation and circadian rhythms.
Researchers create laboratory model to experimentally confirm the behavior of plasma waves as predicted by theory. By studying the properties of liquid metals and high magnetic fields, they successfully generate Alfvén waves in a molten alkali metal, breaking through the sound barrier for the first time.
The Parker Solar Probe has entered the solar corona and spent five hours in direct contact with the sun's plasma, measuring phenomena previously estimated. The probe discovered that the Alfvén critical surface is wrinkled, suggesting a potential new era for understanding coronal heating.
Parker Solar Probe successfully flew through the Sun's corona, sampling particles and magnetic fields, revealing critical information about the Sun's evolution and impact on solar system. The probe made new discoveries, including identifying the origin of switchbacks in the solar wind, which form near the solar surface.
The Parker Solar Probe successfully entered the corona of the Sun, a region approximately 2 million degrees Fahrenheit, and collected data using the Solar Probe Cup instrument. The probe's historic achievement sheds light on phenomena such as solar flares, high-speed solar winds, and the Sun's atmosphere's heat and magnetic fields.
Astronomers observed a young, sun-like star ejecting a massive burst of energy and charged particles, potentially bad news for satellites and power grids. The study suggests that similar events could have shaped planets like Earth and Mars over billions of years.
A supermassive filament eruption has been observed on a Sun-like star, EK Draconis. The filament was large and fast, posing severe impacts on planetary environments. This finding sheds light on the origins of life on Earth and potential life on other planets.
The Solar Jet Hunter project, led by researchers at the University of Minnesota and supported by NASA, allows volunteers to identify solar jets in images captured over 11 years. By annotating images, citizen scientists contribute to a database that helps narrow down data on the Sun for further review.
A new study suggests that sun exposure may reduce the risk of multiple sclerosis in children and young adults by up to 52%. Vitamin D levels are also found to be higher in individuals with increased sun exposure, which may play a role in protecting against autoimmune diseases.
Researchers from the University of Würzburg discovered that monarch butterflies process sun information as a compass during migration, but only when flying actively. The butterfly's brain represents the heading direction relative to the sun in a similar way to a compass.
George Mason University's Ziheng Sun is building a machine learning workforce for Earth science studies through training and curriculum development. The project aims to address the lack of systematic learning materials for Earth science students, providing them with modern technologies like deep learning and cloud computing.
Researchers detected giant gas planet with Jupiter-like orbit around white dwarf star, confirming planets can exist beyond star death; study suggests Jupiter and Saturn may survive Sun's red giant phase.
Research reveals hoverflies use a time-compensated sun compass to orientate during autumn migration, adjusting course based on sun's position and time of day. This navigation technique helps the insects maintain an efficient southern route despite flying on sunny days.
Researchers have discovered a uniquely shaped hot spot on a baby star 450 million light-years away, providing new clues about the formation of our solar system. The discovery confirms accretion models and sheds light on how young stars grow.
Astronomers discovered that comet ATLAS shares the same orbital track as an ancient comet from 1844, suggesting it's a sibling from a parent comet. The comet disintegrated while farther from the Sun than Earth, defying conventional wisdom about comets.
Researchers created a new sun clock to study the solar seasons. The study reveals that the switch from solar maximum to declining phase is fast, occurring within a few solar rotations. This discovery helps predict space weather events, such as violent activity on our Sun leading to extreme events on Earth.
Scientists have solved a long-standing mystery about the Sun's internal magnetic field, which could help predict space weather and prevent devastating geomagnetic storms. The new study provides a strong theoretical framework to improve understanding of the Sun's electromagnetic behavior.
A NASA model describes Kappa 1 Ceti, a 30-light-year-away star with similar mass and surface temperature to our young Sun. The study sheds light on what allowed our Sun to foster life on nearby planets, including Earth's atmosphere and the development of biological molecules.
The Big Bear Solar Observatory will become home to NSF's Synoptic Optical Long-term Investigations of the Sun (SOLIS) telescope, enabling researchers to study long-term changes in the Sun's activity and its impact on Earth. SOLIS will provide comprehensive observations of the Sun's magnetic fields, solar flares, and space weather events.
Researchers have made a groundbreaking discovery about the Sun's magnetic field, revealing that field lines become knotted before emerging at the visible surface. The findings provide conclusive evidence for one of two dominant theories explaining how solar activity occurs.
A new method has been developed to detect stealth coronal mass ejections (CMEs) that can wreak havoc on Earth. By analyzing slow changes in the lower corona using difference images, researchers have successfully predicted the trajectory and potential impact of four stealth CMEs.
Researchers calculate sun's electric field distribution, revealing its impact on solar wind acceleration. The study provides new insights into the sun's interaction with charged particles and their effect on Earth's activities.
Scientists at Stanford University have developed a technique using solar radio signals to measure the depth of ice sheets and glaciers, which could lead to large-scale insight into melting ice sheets and sea-level rise. The passive radar system uses naturally occurring radio waves from the sun to detect changes in ice thickness.
Scientists found that Mercury's large iron core is linked to the early sun's strong magnetic field, which pulled metal grains inward. This discovery sheds light on the formation of rocky planets' cores and their elemental distribution.
Researchers have determined that a massive star, rather than the young sun, was responsible for the split in oxygen isotopes found in the sun and other planets. The study, led by Lionel Vacher, used an unusual meteorite named Acfer 094 to gain insight into the solar system's past.
A new study from the University of Maryland disputes the prevailing hypothesis on Mercury's big core, instead attributing it to solar magnetism. The model shows that a planet's core density and proportion of iron are correlated with the strength of the sun's magnetic field during planetary formation.
Researchers propose comprehensive explanation of sun cycles based on planetary attractive forces, reproducing known solar activity fluctuations. However, long-term forecasts become impossible due to chaotic process in activity over thousands of years.
A Belgian team discovered iron and nickel in the atmospheres of comets across the Solar System, even at great distances from the Sun. This finding has implications for understanding the early Solar System's composition.
Scientists at Princeton Plasma Physics Laboratory have developed a new computer model that accurately predicts the behavior of plasma in the sun's solar corona. This breakthrough could lead to better space weather predictions and improve the understanding of magnetic reconnection, which drives the fusion reactions that power the sun.
Astronomers capture breathtaking images of AG Carinae, a luminous blue variable star surrounded by a glowing halo of gas and dust. The star is in a constant battle to maintain stability due to its massive form and super-hot temperatures.
A massive flare from Proxima Centauri, the star closest to our sun, has been detected, shattering previous records. The flare was observed for 40 hours using nine telescopes and produced a wide spectrum of radiation.
Astronomers have observed a record-breaking flare from Proxima Centauri, the Sun's nearest neighbor, using nine instruments. This extreme outburst offers valuable insights into stellar flares and their potential impact on exoplanet life.
Researchers at Ohio State University suggest that an oral drug currently used to treat neuromuscular diseases could help prevent a common form of skin cancer caused by UVB radiation. The study found that the neurotransmitter dopamine can stop the development and progression of certain UVB-induced precancerous squamous skin cancers.
A new grant will enable researcher Neil Box to conduct further follow-up work with a longitudinal study of mole development in kids, aiming to determine the effects of early sun exposure. The study aims to develop more sophisticated measures of sun damage and explore its relationship with melanoma risk.
Scientists at UCL and George Mason University have located the source of potentially hazardous solar particles for the first time, finding they originate from plasma confined close to the top of the Sun's chromosphere. This discovery aims to improve forecasts of solar storms and reduce risks to satellites and electronic infrastructure.
Farfarout is the most distant known object in our Solar System, with an orbit taking it 175 au from the Sun at its farthest point. Its discovery provides insights into the history of the outer Solar System and the potential for future interactions with Neptune.
The team discovered a planetoid dubbed 'Farfarout,' located 132 astronomical units (au) from the Sun, making it the most distant object ever observed. It has a highly elongated orbit that takes approximately 1,000 years to complete, crossing Neptune's orbit every time.
Researchers link magnetic waves in chromosphere to areas of abundant ionised particles in hot outer atmosphere, explaining the Sun's unique chemical make-up. The discovery provides a foundation for understanding the solar wind and its impact on Earth.
Scientists have gained new insight into the solar structures that create the Sun's flow of high-speed solar wind. Using NASA data and cutting-edge image processing, researchers discovered plumelets, smaller strands of material within solar plumes, which shape the solar wind's characteristics.
A team of astronomers has created the most complete 3D map of cool brown dwarfs in the Sun's local neighborhood, cataloging over 500 objects including 38 new discoveries. The results provide evidence that the Sun's immediate neighborhood is unusually diverse relative to other parts of the Milky Way Galaxy.
Researchers predicted the corona's appearance using NASA data, but the actual appearance was hazier and calmer than expected due to changes in the Sun's magnetic field. The team made adjustments for the Sun's increasing activity, which affects space weather.
The Borexino detector successfully detected CNO neutrinos, revealing the final secret of our sun's fusion cycle. The detection confirms predictions that carbon and nitrogen catalyze hydrogen burning, releasing these 'ghost particles' that provide insight into the sun's interior.
The Parker Solar Probe has discovered that the densities of dust particles around the sun vary wildly over months, contradicting scientists' expectations. This finding suggests a more complex and fast-shifting dusty environment than previously thought, with implications for understanding planet formation.
The Inouye Solar Telescope has released its first image of a sunspot, revealing striking details of the sunspot's structure. The image achieves a spatial resolution about 2.5 times higher than ever previously achieved, showing magnetic fields as small as 20 kilometers on the surface of the Sun.