Articles tagged with Moons Of Jupiter
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A new international study finds that Io and Europa's contrasting water makeup was established at birth, contradicting the idea that it evolved over time. The research suggests that Io formed from dry materials and Europa accreted from ice-rich building blocks.
Researchers have discovered that tidal heating can cause ice shells to melt, leading to ocean boiling and unique geological features. The process can also drive compressional tectonics, shaping the surface of icy moons.
New research questions the origin of organic molecules in Enceladus's plumes, suggesting they could be formed by radiation on Saturn's surface rather than originating from the sub-surface ocean. This challenges astrobiologists' assumptions about the moon's habitability.
The Europlanet Science Congress 2025 will feature press briefings on the RAMSES mission to asteroid Apophis and recent discoveries with the Juno Mission. These events aim to improve our ability to defend Earth from potential asteroid threats.
Researchers used an experimental technique called annealing to rescue a damaged camera on NASA's Juno spacecraft, offering lessons for other space systems that experience high radiation.
Scientists at SwRI conducted lab experiments to explain the mysterious distribution of hydrogen peroxide on Jupiter's icy moon Europa. The research found that trace amounts of CO2 in water ice can enhance hydrogen peroxide production, shedding light on the moon's habitability and chemical cycles.
New data from the James Webb Space Telescope suggests that Europa's icy surface is constantly changing due to interactions with charged particles. Laboratory experiments also found evidence of crystalline ice beneath the amorphous ice layer, indicating a possible liquid ocean beneath the surface.
The Southwest Research Institute-led Ultraviolet Spectrograph (UVS) has successfully completed its initial commissioning aboard the Europa Clipper spacecraft. The instrument will analyze Europa's atmospheric gases and surface materials, searching for evidence of potential plumes erupting from within the icy moon.
A Southwest Research Institute-led team identified electrons with energies enhanced by processes in the Alfvén wing, shaping the plasma environment around Io. These energized electrons interact with Io's atmosphere and surface, ionizing atoms and molecules and creating aurora.
Researchers propose using Exo-AUVs to detect life on Icy Worlds like Europa by identifying micro-zones with high biological potential. The strategy guides the Exo-AUV to collect diverse robust biosignatures and potentially detect extant life in various dimensions.
Researchers from Texas A&M University have introduced a novel thermodynamic concept called the 'centotectic,' which investigates the stability of liquids in extreme conditions. The study provides critical information for determining the habitability of icy moons like Europa, with potential implications for planetary exploration efforts.
The Juno mission has discovered that Io's volcanoes are likely fueled by their own chambers of roiling hot magma rather than an ocean of magma. This finding solves a long-standing mystery about the moon's subsurface origins and provides new insights into Io's volcanic activity.
Astronomers at Cornell University studied Io's volcanoes to understand tidal heating and its role in planetary formation. They found active volcanoes at the poles, which may regulate tidal heating and provide insight into the moon's internal structure.
A new volcano has been discovered on Jupiter's moon Io through analysis of JunoCam images, featuring multiple lava flows and volcanic deposits. The volcano is located just south of the equator and showcases the moon's ongoing geological activity.
A Kobe University researcher found that the massive impact on Ganymede was around 20 times larger than the one that ended the dinosaurs, causing a 1,400km crater and reorienting its axis, according to a new study published in Scientific Reports. The asteroid's diameter was estimated at around 300 kilometers.
Researchers captured a volcanic event on Io using the Large Binocular Telescope's SHARK-VIS instrument, achieving higher resolution than ever before with Earth-based observations. The images reveal surface details equivalent to taking a picture of a dime-sized object from 100 miles away.
A new rocky planet, TOI-6713.01, has been found to be covered with active volcanoes, making it glow with a fiery, glowing-red hue. The planet's surface temperature reaches 2,600 degrees Kelvin due to gravitational forces that cause it to experience tidal energy.
Scientists developed a new technique using knot theory to find all possible routes from one orbit to another without guesswork or excessive computer power. This makes planning missions simpler and more efficient, like navigating a tube map.
Researchers find that instruments on future missions can detect cellular material in one out of hundreds of thousands of ice grains, including a common bacterium as a model organism. This breakthrough increases confidence in detecting lifeforms similar to those on Earth.
Researchers analyzed large craters on Europa to determine the ice shell's thickness, finding it to be at least 20 kilometers thick. This conclusion is based on the study of impact cratering and the combination of physical characteristics that could have created such a surface structure.
Researchers at Cornell University have devised a novel way to determine ocean temperatures of distant worlds based on the thickness of their ice shells. This technique can be used to enhance NASA's mission findings about Europa and Enceladus, two Jovian and Saturnian moons that could potentially support life.
Researchers investigate geologic features on icy moons, revealing mechanisms behind strike-slip faults. Studies on Titan and Ganymede provide insights into potential environments conducive for life emergence.
Researchers reviewed techniques for Jupiter capture trajectories, including satellite-aided captures and multiple-satellite-aided captures. They also examined tour trajectories of Galilean moons using patched-conics models and three-body trajectory designs.
The James Webb Space Telescope has detected hydrogen peroxide on Ganymede's poles and sulfur monoxide on Io, revealing new secrets about Jupiter's Galilean satellites. These findings suggest that charged particles from Jupiter's magnetosphere can alter the surface chemistry of icy moons.
Scientists have developed a new radar technique that can image hidden features within the upper few feet of ice sheets, including melting glaciers on Earth and potentially habitable environments on Jupiter's moon Europa. The technique boosts resolution by combining two different radar bandwidths and looking for discrepancies.
Researchers attribute unusual radar properties to coherent backscatter opposition effect (CBOE) and ice surface irregularities. The CBOE model, improved by Hofgartner and Hand, can explain all icy satellite radar properties.
Researchers at UCL discovered a new type of ice, medium-density amorphous ice (MDA), which has the same density as liquid water and exhibits properties similar to solid water. This finding may challenge existing models of water and raise questions about its anomalies.
Scientists from Southwest Research Institute (SwRI) used data from NASA's Juno spacecraft to observe magnetic reconnection between Ganymede and Jupiter. The study found accelerated electrons traveling along the magnetic field at Ganymede's magnetopause, indicating the presence of reconnection.
A new study suggests that comet impacts can transport oxidants from Europa's surface to its ocean, increasing the probability of finding life. The research model shows that if an impact reaches halfway through the moon's icy shell, meltwater sinks to the ocean, bringing critical chemicals.
Wynne's work identifies key questions and answers needed to study Martian caves, which could hold secrets of life and provide insights into Earth's formation. Caves may also serve as radiation shielding for astronaut habitats on the Moon and Mars.
New research by UC Riverside astrophysicist Stephen Kane suggests that Jupiter's four main moons would quickly destroy any large ring formations. This prevents Jupiter from having substantial rings, unlike Saturn. The study provides evidence of catastrophic events in the past through the analysis of ring compositions and shapes.
SwRI scientists studied particle population and auroral emissions on Jupiter, confirming a decade-old theory that electrons accelerated in both directions create the multi-spot dance of auroral footprints. The research also provided insights into the interaction between Ganymede's magnetic field and Jupiter's massive magnetosphere.
Researchers propose that chaos terrains on Europa's surface could shuttle oxygen to the moon's subsurface ocean, where it could sustain life. The computer model showed that 86% of oxygen is transported through the ice via a 'porosity wave', potentially raising hopes for finding life in Europa's ocean.
The study reveals that the region within Io's orbit is dominated by oxygen and sulfur ions, with oxygen prevailing among the two. Further inward, within Amalthea's orbit, oxygen ion concentration increases unexpectedly.
The discovery suggests a long-term presence of a water vapor atmosphere only in Europa's trailing hemisphere. This finding advances our understanding of the atmospheres of icy moons and paves the way for future studies of Europa by probes like NASA's Europa Clipper mission.
Researchers discovered that moon-moon interactions may be responsible for more tidal heating than Jupiter alone, potentially leading to the melting of ice or rock internally. The study suggests that tidal resonance occurs when tides generated by other objects in the system match a moon's resonant frequency, resulting in increased heating.
A study co-authored by UCLA scientists reveals evidence of water vapor plumes on Europa's surface, providing further support for the possibility of a vast ocean beneath its icy outer shell. The research suggests that there are energy sources in the moon's interior that would be required if life were to develop on Europa.
The OSIRIS-REx spacecraft captured a unique image of Jupiter and its three largest moons, Callisto, Io, and Ganymede. The image showcases the planet's distinct bands and was taken at 76 million miles from Earth.
NASA's Hubble Space Telescope captured a rare triple-moon conjunction of Jupiter's largest moons Europa, Callisto, and Io. The event occurred on January 24, 2015, with the moons' orbital velocities slowing down as they approached Jupiter's cloud tops.
The European Space Agency's JUICE mission will observe ultraviolet emissions from Jupiter's system, providing insights into the composition of the icy moons' surfaces and atmospheres. The instrument will also map the moons' surfaces, sound their interiors, and determine their potential for supporting life in future manned missions.
Los Alamos is leading reactor design for the JIMO mission, which would orbit icy moons to study their makeup and potential for sustaining life. The lab is developing key technologies such as nuclear fuel, beryllium components, and diagnostic instruments for a safe and reliable space reactor.
Researchers are studying Europa's icy shell to understand its composition and potential for supporting life. A computer model suggests organisms could thrive beneath the thick cap of ice, while another analysis reveals cracks and ridges formed by Jupiter's tides.
Researchers used a powerful computing cluster to simulate moon motions over 1 billion years, discovering that the sun's gravity pulls smaller moons from their orbits. The study reveals how giant planets capture and shape the orbits of tiny moons, shedding light on Jupiter's unusual satellite system.
A new mathematical technique developed by Purdue University engineer James Longuski has significantly reduced the time required to plan space missions. By using a graphical representation of possible paths and automating calculations with software program STOUR, engineers can quickly identify optimal routes for spacecraft travel.
The Galileo spacecraft has captured the highest-resolution images yet of three of Jupiter's four innermost moons, revealing surface features as small as 2 kilometers across. The images show a bright surface feature on Amalthea named Ida, a streak of bright material about 50 kilometers in length.
Astronomers discovered a potential satellite orbiting Comet Hale-Bopp using Hubble Space Telescope images. Sekanina's model suggests a 33-kilometre-wide moon about 200 kilometres from the comet's nucleus.
An international team of scientists has found a cloud of dust grains surrounding Ganymede, the largest of Jupiter's four Galilean satellites. The dust was generated by impacts of interplanetary meteoroids and is thought to be an important mechanism for dust production in space.
Scientists discover Jupiter's ring system is composed of dust kicked up by meteoroids striking four inner moons, with the outermost ring consisting of two embedded rings. The system provides a unique dynamical laboratory for studying the solar system's early processes.
The discovery of glowing hydrogen gas on Io, a moon of Jupiter, was made using the Hubble Space Telescope. The findings indicate that hydrogen may be concentrated at the poles in the form of hydrogen sulfide frost, which could be broken up into constituent hydrogen and sulfur atoms with glow.
Scientists have discovered oxygen locked in ice on Callisto, a moon of Jupiter, with sunlight playing a key role in separating hydrogen and oxygen atoms. Meanwhile, the Galileo team has found that sulfur dioxide emissions from Io are caused by both volcanic activity and frost sublimation.
Researchers outline requirements for habitable moons, including stable orbit and atmosphere retention. Moons in the right position and size could support life on planets like Jupiter's Europa.