Articles tagged with Saturn
Researchers have detected a massive lightning storm on Saturn, with flash rates exceeding those of Voyager 1 and intensities comparable to Earth's thunderstorms. The storm has been observed since January 23 and has varied in intensity, with some 25 episodes occurring since its initial detection.
The Huygens probe has revealed that Titan's surface is a barren, 'river' landscape where water ice congeals like stone. Methane plays a similar role to water on Earth, existing in solid, liquid, and gas states. The dense atmosphere has conditions similar to those early in our solar system.
Recent images from NASA's Cassini spacecraft reveal spectacular evidence of an active moon, Enceladus, with jets of fine, icy particles streaming from its south polar region. The discovery confirms the moon is geologically active and provides insight into its internal heating and possible energy sources.
Recent images from NASA's Cassini spacecraft show jets of fine, icy particles emanating from Saturn's moon Enceladus' south polar region. The discovery provides unambiguous visual evidence that the moon is geologically active and has a fountain-like source of material.
The Cassini mission has released a flood of new images of Saturn's icy moons, revealing detailed features such as plumes on Enceladus and compositional variation on the surfaces of Rhea, Dione, and Hyperion. The new views include large mosaics, movies, and false-color views, providing insights into the moons' intricacies.
Climate scientists highlight human impact on temperature extremes, while researchers develop a new method to predict catastrophic earthquakes. Meanwhile, hurricane intensification may be linked to eyewall precipitation patterns.
Astronomers observed thin, parallel striations like spokes on a pinwheel within Saturn's outer rings, providing clues about ring thickness and dynamics. The findings give scientists new insights into the micro-structure of the rings and will help estimate their overall thickness.
Researchers have discovered ever-changing clusters of debris in Saturn's A ring, with cluster cores ranging from 7 feet to 43 feet in size. The clusters are periodically torn apart by gravitational tides and reassembled into new configurations.
Scientists have found that parts of the D ring have relocated and dimmed, indicating very short evolutionary lifetimes. The Cassini mission has also revealed a spiral structure in the F ring, which may be caused by moons crossing the ring and spreading particles around.
The Cassini-Huygens mission has captured the first-ever images of Saturn's auroral emissions at its poles, similar to Earth's Northern Lights. The UVIS instrument on the spacecraft shows rapid responses to changes in the solar wind and significant changes in emissions within the 'oval' of the aurora at Saturn's south pole.
Scientists have discovered eerie-sounding radio emissions from Saturn's auroras using Cassini spacecraft data. The study provides high-resolution measurements allowing audio recordings of the radio waves, offering clues about the source of the emissions.
Researchers Bill Kurth and Don Gurnett used Cassini data to study Saturn's kilometric radiation, a phenomenon similar to Earth's northern lights. The higher resolution instrument provided detailed information on the spectrum and its variability, shedding new light on the radio emissions above Saturn's auroras.
A University of Chicago instrument has discovered dust particles around Saturn's moon Enceladus, sparking interest in a possible dust cloud or connection to the E-ring. The findings could help scientists better understand Enceladus' role as a source of water ice particles in the E-ring.
Cassini mission data reveals the formation of molecular oxygen atmospheres in Saturn's rings without life present. This finding suggests that oxygen can be produced through non-biological means, complicating the search for life beyond Earth.
A team of astronomers led by Clarke gathered data on Saturn's aurora using Cassini and Hubble spacecraft. Their observations revealed that Saturn's aurora differ in character from day to day, with varying lengths and behaviors compared to Earth's and Jupiter's.
Researchers at the University of Iowa have discovered a link between Saturn's radio emissions and its bright auroras. The findings indicate that strong radio emissions from Saturn's aurora are similar to those on Earth, suggesting a connection between the two.
Scientists have detected a 'whiff' of methane evaporating off the surface of Saturn's moon Titan, revealing insights into its geology and weather systems. The data from the Huygens probe also suggests that beneath the thin crust lies a material made of water ice grains.
The Huygens probe will parachute onto Titan's surface on January 14, studying its thick atmosphere and clouds with six science experiments. DISR will take images of the surface for over two hours, creating panoramic views of the ground and horizon.
Researchers have discovered Cassini findings on Saturn's rings, dust impacts, and radio rotation rate variations. The study found that Saturn's lightning is one million times stronger than Earth's, with some signals linked to storm systems.
Scientists have found that Saturn's system is composed of ice and oxygen atoms, which are produced by collisions between small icy moons and the planet's magnetosphere. The research suggests that these collisions have been occurring for millions of years, adding fresh material to the ring system.
The Cassini spacecraft detected a massive cloud of escaping oxygen atoms on the dark side of Saturn's rings in January 2004. Scientists believe that the sudden release could be caused by a collision between ice particles and material in one of the main ring systems, or an eruption of icy slush on Enceladus.
Research papers in Geophysical Research Letters highlight advancements in measuring ocean conveyor belt circulation, tracing large-scale pollution from space, analyzing the energy of strong thunderstorms, and improving space weather predictions using recent satellite data.
Scientists used computer models to analyze the internal structures of Jupiter and Saturn, finding that heavy elements like iron are concentrated in Saturn's core. The research uses data from shock compression experiments and helps improve models of the planets' formation.
Researchers from University of Colorado Boulder analyze Cassini mission data, revealing compositional variation in Saturn's A, B, and C rings. The study suggests that the outer part of the rings contains more ice, shedding light on their origin and evolution.
The Cassini-Huygens spacecraft has successfully landed at Saturn, providing unprecedented insights into the planet's rings, moons, and atmosphere. The four-year mission will explore Titan, Saturn's largest moon, and shed light on the origin and evolution of planetary systems.
Researchers analyzed Cassini's Visual and Infrared Mapping Spectrometer data, revealing water ice, minerals, and unidentifiable materials on Phoebe's surface. This suggests a possible connection between Phoebe and comets, supporting the idea that it may be similar to Kuiper Belt Objects.
The Cassini orbiter is equipped with 12 scientific instruments to study Saturn's rings and moons. The UVIS instrument will measure UV light reflected by or emitted from Saturn's atmosphere, its rings, and moon atmospheres.
The Stardust mission encountered a swarm of large and small particles as it passed within 146.5 miles of the comet's nucleus, exceeding its goal of collecting at least 1,000 samples measuring one-third the width of a human hair or larger.
The University of Chicago High Rate Detector will study the physical, chemical and dynamical properties of trapped Saturnian dust. The instrument is capable of detecting 100,000 particles per second, measuring particles ranging from human hair to smaller particles.
Researchers create tholins in lab experiments to understand Titan's chemistry and potential for life. They analyze spectroscopic properties and react with molten water to form oxygenated compounds.
Scientists plan to deploy the Huygens probe to study Titan's lakes, seas, and climate. The moon's thick atmosphere and liquid hydrocarbons will provide a unique environment to understand oceanographic processes and predict climate changes.
New calculations suggest that recycling of material through small moons can lengthen the lifetime of rings and moons. This process, known as cosmic recycling, allows for the re-accretion of fragments into new moons, extending the persistence of ring systems.
A new study suggests that Jupiter-like planets form quickly, within hundreds of years, rather than over millions. This contradicts the current standard model of planet formation, which proposes a longer time frame for gas giant planet formation.
The University of Colorado-built UVIS instrument package has produced the first spectral images of Jupiter, capturing its aurora and a gigantic glowing ring of gas encircling the planet. The image reveals temperatures of over 100,000 degrees Fahrenheit and a torus density so low that it would fit inside Fenway Park if compressed to sol...