Articles tagged with Jupiter
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A recent study using data collected between 2006 and 2007 found evidence for 10 free-floating planets roughly the mass of Jupiter, suggesting they are common. The discovery supports the 'ejection' scenario where planets are kicked out from their solar systems due to close gravitational encounters with other planets or stars.
A new analysis of NASA's Galileo data confirms the existence of a molten magma layer on Jupiter's moon Io, explaining its intense volcanic activity and shedding light on the Earth and moon's formation. The 'ocean' of magma is estimated to be 30 miles thick and features blistering temperatures of over 2,200 degrees Fahrenheit.
Researchers have discovered that some extrasolar planets, known as hot Jupiters, can orbit in the opposite direction of their star's spin. This occurs due to gravitational interactions with nearby planets, which perturb the inner planet's orbit and cause it to lose energy via strong tides.
Astronomers at Northwestern University have developed a computer simulation that explains how hot Jupiters form with flipped orbits around their stars. The study, published in Nature, suggests that gravitational perturbations from other planets in the system can cause the inner planet to lose energy and orbit closer to its star.
A consortium of scientists has been awarded $7.5 million to develop novel compounds that could become treatments for nicotine addiction and possibly other drug addictions.
A cyclone on Saturn has been detected to last more than 5 years, making it the longest-lasting cyclone recorded on a giant planet. The cyclone, similar in size to Europe, was tracked using images from the Cassini probe and found to have a weak circulation with properties similar to its surroundings.
Astronomers have discovered a new alien world, Qatar-1b, a hot Jupiter located 550 light-years from Earth. The planet orbits extremely close to its star, resulting in scorching temperatures and a unique rotational period.
Two amateur astronomers independently observed an asteroid impact on Jupiter, opening a potential giant research lab in space for planetary scientists. The initial observations could help understand the behavior of meteoroids and their effects on Jupiter's atmosphere.
Studies based on the JUPITER trial found that high-dose statin treatment significantly reduces myocardial infarction and stroke risk. In contrast, good cholesterol levels no longer predict cardiovascular risk in patients with very low bad cholesterol levels.
Researchers used quantum simulations to study hydrogen's behavior under extreme pressure, discovering a discontinuous transition between molecular and atomic states. The critical point occurs at high temperatures and pressures, near 3100°F and 1 million atmospheres.
Researchers from the University of the Basque Country and American scientists publish first results of a study on the impact of a large-sized celestial body on Jupiter last July. The impact created a massive ash cloud of around 5,000 km in size, with surrounding halo effects.
New research identifies Jupiter Family comets as the primary source of the zodiacal cloud's eerie glow, contradicting previous theories that pointed to asteroid dust.
Astronomers discover six exoplanets orbiting their stars in the opposite direction to the star's rotation, contradicting conventional wisdom. This finding sparks alternative migration theories, suggesting that hot Jupiters may form far from their stars and migrate inward due to gravitational interactions with distant companions.
Scientists at UC Berkeley propose helium rain as explanation for neon depletion in Jupiter's atmosphere, with helium droplets forming around 10,000 km below the surface and releasing heat that explains Saturn's excess brightness.
Researchers discovered a layer where helium condenses into droplets, allowing neon to dissolve and fall towards the planet's interior. This phenomenon explains the observed lack of neon in Jupiter's upper atmosphere.
The massive planet WASP-12b is being torn apart by the gravitational forces of its host star, resulting in a 'death march' that explains its unusually large size. The research also suggests the presence of a super-Earth in the disk around the star.
Researchers at the Southwest Research Institute suggest that differences in cometary impacts and melting patterns explain Ganymede and Callisto's distinct surfaces. The study reveals that Ganymede received more intense impacts, leading to deeper melting and a heavier core.
The study reveals two distinct dust disks around the star 51 Ophiuchi, with the inner disk spanning 4 Astronomical Units from the star and tapering off rapidly. The outer disk extends hundreds of times farther and appears more puffed up, holding smaller particles similar in size to those in smoke.
New University of Washington research suggests comets unlikely cause mass extinctions, contradicting long-held belief. The study shows that Jupiter and Saturn's gravitational fields protect Earth from most comets, limiting potential impact.
Astronomers observe Jupiter's new scar, a dark bruise about the size of the Pacific Ocean. The impact is believed to have been caused by a comet or asteroid, with reflective particles propelled high into the stratosphere.
Researchers believe that Galileo's notebooks from 1613 may reveal evidence of his discovery of a new planet, which is now known as Neptune. The planet was observed by Galileo as a faint star near Jupiter and moved relative to an actual nearby star.
Researchers found that reducing high sensitivity c-reactive protein (hsCRP) levels and LDL cholesterol significantly reduces vascular events. Achieving both targets resulted in the largest reduction in cardiovascular risk, highlighting the importance of addressing inflammation in statin therapy.
Scientists at Lawrence Livermore National Laboratory and the University of Illinois have determined the temperature at which helium becomes insoluble in dense metallic hydrogen. This finding has significant implications for models of the interior structure and evolution of Jovian planets, including Saturn and Jupiter.
A recent analysis estimates that over 44.7 million older Americans may benefit from statin therapy, highlighting a significant gap in current treatment guidelines. The study found that nearly 80% of this segment of the population could potentially be recommended statin therapy if new criteria are adopted.
A new study found that gas giants like Jupiter must form extremely fast, in less than 5 million years, or they won't form at all. This rapid growth spurt is necessary because the material from which they formed probably disappeared within a few million years.
Researchers propose that Jupiter's gravitational pull creates powerful waves in Europa's ocean, generating significant heat energy. This could be a dominant heat source, potentially supporting life without sunlight.
Astronomers discovered strong evidence that brown dwarfs form like stars using the Submillimeter Array. Brown dwarfs are on the line between planets and stars with masses between 15 and 75 Jupiters.
A new simulation by UC Berkeley geophysicist Burkhard Militzer predicts Jupiter's rocky core is 14-18 times Earth's mass, surrounded by layers of metals, rocks, and icy materials. The result challenges previous models and provides a more precise physical description of Jupiter's interior.
A two-hour observation using Multi-Conjugate Adaptive Optics (MCAO) system revealed changes in Jupiter's smog-like haze over the past three years, likely due to a planet-wide upheaval. The images show a major alteration in the brightness of the equatorial haze, indicating an increase in haze or its movement to higher altitudes.
The study reveals that the formation of planetary systems was full of violence and drama, but our solar system required conditions to be just right. The researchers ran over 100 simulations, showing that an average planetary system's origin was dramatic, with planets being flung into space or crowded together.
Researchers at UC Berkeley and University College London discovered that metallic helium is produced under extreme conditions found at the centers of Jupiter and Saturn, mixing with metal hydrogen to form a liquid metal alloy. This finding challenges previous theories about the energy source powering these planets.
Astronomers capture high-resolution images of Jupiter's turbulent atmosphere using NASA's Hubble Space Telescope and the W. M. Keck Observatory. The images reveal increased changes in the planet's atmosphere, including a color change from white to red near the Great Red Spot.
A team of scientists from Johns Hopkins University used data from NASA's New Horizons spacecraft and multiple telescopes to observe the high winds in Jupiter's Little Red Spot. The winds have increased substantially over previous storms, with maximum speeds reaching 384 miles per hour, surpassing Category 5 storm thresholds.
Researchers from the University of Maryland and Max-Planck Institute found that Jupiter's outermost ring is extended beyond Thebe's orbit due to dust particles' electric charges interacting with the planet's magnetic field. This phenomenon affects any planet's rings, shedding light on planetary formation.
Researchers have found unexpected luminous spots on Jupiter's atmosphere caused by the moon Io's volcanic eruptions. The discovery challenges previous models of the Io footprint and reveals a new interpretation where beams of electrons travel from one hemisphere to another.
A new discovery at Jupiter could help protect Earth-orbiting satellites by understanding how electrons are accelerated within the planet's magnetic field. The research found that very low frequency radio waves can accelerate electrons up to high energies inside Jupiter's magnetic field, similar to the way they do on Earth.
A new system of planets has been discovered with striking similarities to our Solar System, revealing giant planets that favour family groups over lone objects. The discovery uses a world-wide net of telescopes and challenges the single-life theory of gas-giant planets.
Astronomers have discovered a solar system nearly 5,000 light years away with scaled-down versions of Jupiter and Saturn. The planets are similar in size to our own, suggesting that planetary systems like ours may be more common than previously thought.
The New Horizons spacecraft provided detailed observations of Jupiter's atmosphere, revealing new insights into cloud structure and composition. The mission also explored the planet's four largest moons, including Io, which showed over 20 geological changes since the last close-up look.
Astronomers found a low-mass companion to a rapidly spinning pulsar, which orbits the neutron star every 54.7 minutes at an average distance of 230,000 miles. The system is thought to have formed billions of years ago and is now accreting mass from the companion, causing an outburst.
Astronomers used powerful telescopes to detect giant Jupiter-like planets in the outer regions of nearby solar systems, but found none beyond 5 astronomical units from their stars. The survey, which was conducted over three years, aimed to determine what the average planetary system looks like and whether ours is typical.
Researchers have mapped weather on a gas giant planet called HD 189733b, discovering supersonic winds that can move at speeds of up to 22,000 mph. The winds are so fast they redistribute heat across the planet's surface, with dayside and nightside temperatures differing by only 500 degrees Fahrenheit.
New Horizons successfully completed a flyby of Jupiter, using the planet's gravity to accelerate the spacecraft towards its destination in the Kuiper Belt region. The mission is gaining nearly 9,000 miles per hour and will provide scientists with stunning science results at Jupiter.
Researchers led by paleobiologist Jere H. Lipps argue that Europa's icy surface may harbor life due to the presence of water ice, briny oceans, and tidal friction generating heat. This could lead to a variety of habitats supporting life forms, from microorganisms to macroscopic organisms.
According to ASU researcher Ronald Greeley, Europa is the most promising candidate among four worlds beyond Earth that might contain life. The moon has a thick layer of water and organic minerals, making it an ideal target for NASA's next mission. Scientists hope to measure the ice shell's thickness using tidal flexing measurements.
The New Horizons spacecraft is on course to swing past Jupiter, accelerating its speed and testing its systems ahead of its Pluto encounter. The mission will collect valuable science data on Jupiter's atmosphere, magnetic field, and moons.
Researchers found that gas giants either form within the first 10 million years of a sun-like star's life or not at all. The study suggests that gas giant planets must form early in a star's history, offering insights into planet formation.
Astronomers confirm two exoplanets using ESO's Very Large Telescope and Hubble Space Telescope data. The discoveries provide strong evidence for at least 6 billion Jupiter-sized planets in the Milky Way, including five new ultra-short-period planet types.
Astronomers have discovered a double planetary mass object in the Ophiuchus star-forming region, approximately 400 light years away. The objects, which are similar to extra-solar giant planets, are not orbiting around a star but instead appear to be circling each other.
Researchers have discovered six 'planemos,' planetary mass objects with masses similar to extra-solar planets, surrounded by dusty discs that may evolve into miniature planetary systems. These findings suggest similar infancies for our Sun and smaller objects, blurring the definition of a planet.
Researchers found four 'planemos' with dusty disks that could evolve into miniature planetary systems. The discovery challenges the traditional view of what constitutes a planet.
Research papers in Geophysical Research Letters and Paleoceanography reveal the connection between terrestrial gamma-ray flashes and intracloud lightning, as well as the potential of dinoflagellate microfossils to document past climate changes. The findings suggest that these marine organisms can provide valuable information on ocean c...
Astronomers have discovered an eclipsing pair of brown dwarfs in the Orion Nebula, providing the first direct measurement of their mass, size, and surface temperature. This discovery sheds light on the dynamic processes that produce stars and helps estimate the masses of faint objects.
A team of astronomers reports the discovery of two young brown dwarfs in mutual orbit, allowing for the direct measurement of their radii and masses. The findings provide valuable insights into the physical properties of brown dwarfs, shedding light on their size, mass, and evolutionary pathways.
Astronomers have calculated the density of binary asteroid Patroclus, suggesting it is composed mostly of water ice covered by a patina of dirt. The team proposes that Patroclus and other Trojan asteroids may be dirty snowballs formed in the outer reaches of the solar system.
A team of astronomers has discovered a hot Jupiter planet in a triple star system, challenging conventional theories of planetary formation. The discovery suggests that it is possible for planets to form around the host star and then be captured by a binary system, explaining the unusual configuration of the HD 188753 system.
Researchers created a three-dimensional computer model that generates Jupiter's massive east-west winds and alternating jets at higher latitudes. The model suggests convection driven by deep internal heat sources powers the surface winds, providing a possible answer to why they remain stable for centuries.
Jupiter's atmosphere is driven by heat from within the planet, creating organized wind chaos. The computer models explain why there are two classes of jet winds: strong and narrow near the equator, but weak and wide at higher latitudes due to the planet's curvature and rotation.
The study reported a 10.6% rate of stent-related MACE for the control Tecnic group, while the Janus group had a 6.4% rate, with a significant reduction in TLR, and no stent thrombosis occurred
Researchers improved hurricane prediction using high-resolution general circulation models, predicting the course of four storms with increased accuracy. A new study found that solar emissions likely control Jupiter's X-ray emissions, providing a potential proxy for monitoring flares invisible to space weather satellites.