... Saturn: Dirty Rings and a Clean Moon . ... Credit Copyright: Cassini Imaging Team , SSI , JPL , ESA , NASA Explanation: Eating surface ice from Enceladus might be healthier than eating ice from Saturn's rings -- it certainly appears cleaner. ... For reasons that are not yet understood, however, many of Saturn's ring particles have become partly coated with some sort of relatively dark dust, while the surface of Enceladus appears comparatively bright and clean. ... In the Shadow of Saturns Rings . ...

... 2012 September 16 . Saturn: Bright Tethys and Ancient Rings . ... Explanation: How old are Saturn's rings? ... Inspection of images by the Saturn-orbiting Cassini spacecraft indicates that some of Saturn's ring particles temporarily bunch and collide, effectively recycling ring particles by bringing fresh bright ices to the surface. ... Icy bright Tethys , a moon of Saturn likely brightened by a sandblasting rain of ice from sister moon Enceladus , is visible in front of the darker rings. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Have you ever looked at pictures of Saturn's rings and noticed what look like gaps in the rings? ... Gian Domenico Cassini discovered a large gap in Saturn's rings in 1675. Later, an astronomer named Encke discovered a smaller gap near the edge of the rings. ... It was found long ago that an orbit in the Cassini Division, as the large gap is named, has a period almost exactly one-half that of one of Saturn's moons named Mimas. ... 2008 Phil Plait. ...

... Even the most modest telescope reveals the beauty of Saturn's rings. ... For details on observing the rings, see "Running Rings Around a Planet," Mercury , September/October 1996, p. 9.] Eerie rings. ... From Earth, we can see the three main rings. ... Conveniently for observers on Earth, the rings are tipped by Saturn's 27-degree tilt. ... When the twin Voyager spacecraft flew by Saturn in the early 1980s, they discovered that the main rings consist of hundreds of ringlets (see photo below). ...

... ATNF Home . ... About ATNF overview . News | ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Mopra radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Now, new Australia Telescope observations of the polar ring galaxy NGC 4650a suggest that the dark matter in this galaxy lies in a flattened distribution aligned with the polar ring. ...

... Saturn is the sixth planet from the Sun , and the second largest in the solar system . Saturn's most distinctive feature is its ring system . ... Saturn has an internal magnetic field with a dipole aligned with the rotation axis (Ness et al., ... The solar wind and Saturn's rings and satellites supply the particles that are trapped in the radiation belts. ... Between the inner and outer satellites orbits Titan, Saturn's largest moon (larger than the planet Mercury ). ... Res., ...

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Posted on December 5, 2014 | 4 Comments The December skies mark my favourite time of the year for stargazing. ... Continue Reading.. Posted on June 10, 2014 | ... Posted on April 30, 2014 | ... 2 Comments The year 2014 could see the first 3D printer brought into space, the first fare-paying passengers leave Planet Earth on the Virgin Galactic and the first test mission of a [ ] . ... Posted on October 28, 2013 | ...

... So it is that Saturn and Titan will be the destination of the Cassini mission, a project under joint development by NASA, the European Space Agency and the Italian Space Agency. ... This artist's rendering shows the European Space Agency's Huygens probe descending into the atmosphere of Saturn's moon Titan after being released by NASA's Cassini spacecraft. ... This artist's rendering shows the European Space Agency's Huygens probe descending into the atmosphere of Titan with Saturn in the background...

... S. G. Pugacheva. Sternberg State Astronomical Institute, Moscow, 119899, Russia, pugach@sai.msu.ru . ... Sternberg State Astronomical Institute, Moscow University, Russia, pugach@sai.msu.ru . ... Sternberg State Astronomical Institute, Moscow University, 13 Universitetsky pr., ... Sternberg State Astronomical Institute, Lomonosov Moscow State University, Universitetskii pr. ... S. G. Pugacheva and V. V. Shevchenko, Sternberg State Astronomical Institute, Moscow University, 13 Universitetsky pr., ...

NATIONAL ASTRONOMY AND IONOSPHERE CENTER . ... Astronomy . ... Visitor Center . ... Planetary Radar . ... In fall of 1999 and 2000, the rings of Saturn were imaged using the Arecibo S-band radar system by P. Nicholson, D. Campbell, R. French, G. Black and J.-L. Margot. ... A delay-Doppler image of Saturn's rings at a frequency of 2380 MHz (12.6 cm) is compared to a model image constructed by reprojecting a pair of HST images taken at 439 nm. ...

. My astronomical research interests center on galaxy structure and evolution. Current topics include: . Polar-ring and interacting galaxies (see also new catalogue ) . Galaxy warps: statistics, properties and origin . Spiral galaxies at z~1: radial and vertical structure of stellar disks, statistics of interactions . Surface photometry and kinematics, dynamical modeling . Observational cosmology . Joomla Counter since Sep 1997

... Some beautiful moon drawings, from Deirdre Kelleghan: . Here are some images at my workshop Deadly Moons which I ran in Carrig National School in Birr on May 15th. Ten of the moons produced will be in exhibit in Birr Castle Science Center at the In the Footsteps of Galileo - International Astronomical Sketching Exhibition opening on September 18th 2009." Monday, 18 May 2009 16:08 . International Year of Astronomy, Ireland National Node . ...

... White Dwarf Spectra . ... My conception of a white dwarf with a dusty disk. The dust must sublimate and will accrete onto the surface of the white dwarf, possibly through streamers of gas that follow the white dwarf's magnetic field lines. As in Saturn's rings, there might be streaks in the dust due to material that is darker than the surrounding dust, or perhaps caused by shadows of rocky bodies with sizes larger than the scale height of the disk. ...

... Tonight's Sky . ... Observing . ... Product Reviews . ... Opportunityт??s devilish view from on high . ... Sky Events . ... Cassini flies high to view Saturn's rings again . ... These three Cassini images show a propeller-shaped structure created by an unseen moon in Saturn's A ring. ... It's been nearly two years since NASA's Cassini spacecraft has had views like those it is now enjoying of Saturn's glorious rings. ... Only registered members of Astronomy.com are allowed to comment on this article....

... Dr. Denis Bulaev . ... Talks . ... Invited Talks . Anomalous spin relaxation in nanotubes (in Russian) . ITP Seminar , Kapitza Institute for Physical Problems RAS , Moscow, Russia, September 6, 2007. Spin qubits based on quantum dots in III-V semiconductors and graphene (in Russian) . ... Spin properties of electrons and holes in quantum dots (in Russian) . ... Electric dipole spin resonance and spin decoherence for heavy holes in quantum dots . ... Spin qubits in graphene quantum dots . ...

Saturn: The beauty of the rings. Saturn . ... Belongs to the giant planets . It has no definite solid surface. ... The free fall acceleration at the Saturn surface near equator is 9,06 m/s^2 . ... In the centre of the planet the temperature is about 20000K. The satellites . ... The rings of Saturn . ... It is proved that Saturn's rings (as well as the other planet's) are the fragments of the great cloud being near the planet with million kilometres length (see how the rings were formed ). ...

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...

... Krasikova, Moscow Russia . ... 121002 Moscow, Russia . Theory of Singularities. ... V.I. Arnold Seminar at MSU. ... 2002 . ... S. Duzhin Seminar "Moscow - St. Petersburg". ... Branched coverings of the sphere and intersection theory in the moduli spaces of curves". ... 18, 2003 . ... Nechaev - Sossinsky seminar in math. physics. ... Theory Ser. ... Math., ... Lectures on Generating functions" (Russian), Moscow, MCCME, 2002, (English), vol. 23 of Student Mathematical Library, AMS (2003) . ...

... A dynamo is created in a magnetic field by an electric circuit, part of which is moving relative to the rest (additional conditions must also be met). ... Furthermore, the plasma between them conducts electricity very well along its magnetic field lines, which act as if they were wires connecting Io and the planet (drawing). ... The drawing is not to scale. ... The Hubble Space Telescope , using its Wide Field and Planetary Camera 2, has been photographing auroras of the planet Jupiter. ...

... Dept. for Physics of Minor Celestial Bodies . Dept. for Physics of Planetary Systems . Dept. for Solar Physics . ... Achievements . ... The theory of radiative transfer in inhomogeneous atmospheres was developed ( Yanovytskij E.G. ) . ... Calculations shown that the vertical movement of gas and aerosol in the atmosphere of giant planets with velocity w = (0.1-0.5) m/s determines the capacity of visible clouds and therefore affects their brightness characteristics (A. P. Vidmachenko). ...