Latest Moons of Saturn Stories
NASA says its Cassini spacecraft's magnetospheric imaging instrument has detected a new, temporary radiation belt around the orbit of one of Saturn's moons. Scientists located the new radiation belt in the orbit of the moon Dione, about 234,000 miles from the center of the planet. The new belt, which has been named the Dione belt, was detected by the instrument for only a few weeks on three separate occasions in 2005, the space agency said in a statement.
A powerful lightning storm in Saturnâ€™s atmosphere that began in mid-January 2009 has become the Solar Systemâ€™s longest continuously observed thunderstorm.
Scientists using the Cassini spacecraft's Magnetospheric Imaging instrument (MIMI) have detected a new, temporary radiation belt at Saturn, located around the orbit of its moon Dione at about 377 000 km from the center of the planet.
A storm cell the size of India was identified on Titan, Saturn's largest moon, scientists from the California Institute of Technology said. The methane cloud mass spotted over a cold desert area likely played a major part in shaping the area with significant amounts of precipitation, Caltech scientists
The jointly owned US and European spacecraft Cassini has transmitted raw images back to Earth of the instant Saturn reached its equinox.
On August 11, ladies and gentlemen, boys and girls, children of all ages, the planet Saturn, with no help from either Jupiter or Uranus, will make its 170,000-mile-wide ring system disappear.
Data collected during two close flybys of Saturn's moon Enceladus by NASA's Cassini spacecraft add more fuel to the fire about the Saturnian ice world containing sub-surface liquid water.
A new study has revealed the origins of tiger stripes and a subsurface ocean on Enceladus - one of Saturnâ€™s many moons.
The Cassini mission, a joint venture of NASA and the European and Italian space agencies has been orbiting Saturn for five Earth years as of Tuesday. NASA officials said that is about one sixth of a Saturnian year -- enough time for the spacecraft to have observed seasonal changes on the planet, its moons and sunlight's angle on the dramatic rings. Cassini passed through a gap in the rings as it entered orbit on June 30, 2004, NASA said.
PASADENA, Calif., June 24 /PRNewswire-USNewswire/ -- For the first time, scientists working on NASA's Cassini mission have detected sodium salts in ice grains of Saturn's outermost ring.
Lagrangian Point -- In Lagrangian mechanics, a Lagrangian point (or L-point) is one of five positions in space where the gravitational fields of two bodies of substantial but differing mass combine to form a point at which a third body of negligible mass would be stationary relative to the two bodies. Bodies at the L-point will not move relative to the parent bodies if they are not perturbed by other gravitational forces. They are sometimes also referred to as libration points. The...
Saturn's moon Phoebe -- Phoebe is the outermost of Saturn's known moons. Phoebe is almost 4 times more distant from Saturn than its nearest neighbor (Iapetus). It was discovered by William Henry Pickering in 1898. Most of Saturn's moons have very bright surfaces, but Phoebe's albedo is very low (.06), as dark as lampblack. All of Saturn's moons except for Phoebe and Iapetus orbit very nearly in the plane of Saturn's equator. Phoebe's orbit is retrograde, inclined almost 175, and is...
Saturn's moon Hyperion -- Hyperion is a moon of Saturn discovered by Bond and Lassell in 1848. It is the largest highly irregular (non-spherical) body in the solar system (Proteus is quite a bit larger but is almost spherical). It seems likely that Hyperion is a fragment of a larger body that was broken by a large impact in the distant past. The largest crater on its surface is approximately 120 kilometers in diameter and 10 kilometers deep. Like most of Saturn's moons, Hyperion's low...
Saturn's moon Titan -- Titan is the planet Saturn's largest moon. It is larger than either of the planets Mercury or Pluto and is the second-largest moon in the solar system after Ganymede (it was originally thought to be slightly larger than Ganymede, but recent observations have shown that its thick atmosphere caused overestimation of its diameter). Titan was discovered on March 25, 1655 by the Dutch astronomer Christian Huygens, making it one of the first non-terrestrial moons to be...
Saturn's moon Rhea -- Rhea is the second largest moon of Saturn. It was discovered in 1672 by Giovanni Cassini. Rhea is an icy body with a density of about 1.24 gm/cm3. This low density indicates that it has a rocky core taking up less than one-third of the moon's mass with the rest composed of water-ice. Rhea's features resemble those of Dione, with dissimilar leading and trailing hemispheres, suggesting similar composition and histories. The temperature on Rhea is -174°C in direct...
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