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Largest Ring Around Saturn Discovered

(PhysOrg.com) -- NASA's Spitzer Space Telescope has discovered an enormous ring around Saturn -- by far the largest of the giant planet's many rings.

Space & Earth / Astronomy

created Oct 07, 2009 | popularity 4.7 / 5 (32) | comments 12

Falcon Heavy Rocket gets unveiled by SpaceX (Update)

(PhysOrg.com) -- Private spaceflight company, SpaceX, unveiled their massive 22 story big Falcon Heavy rocket capable of carrying a cargo capacity of 117,000 pounds. The 27-enginge Falcon Heavy is aimed to ...

Space & Earth / Space Exploration

created Apr 05, 2011 | popularity 4.9 / 5 (25) | comments 110 | with audio podcast report

Exotic life beyond Earth? Looking for life as we don't know it

Scientists at a new interdisciplinary research institute in Austria are working to uncover how life might evolve with "exotic" biochemistry and solvents, such as sulphuric acid instead of water. Their research ...

Space & Earth / Space Exploration

created Sep 18, 2009 | popularity 4.8 / 5 (24) | comments 8

Saturn's Mysterious Hexagon Emerges from Winter Darkness

(PhysOrg.com) -- After waiting years for the sun to illuminate Saturn's north pole again, cameras aboard NASA's Cassini spacecraft have captured the most detailed images yet of the intriguing hexagon shape ...

Space & Earth / Space Exploration

created Dec 09, 2009 | popularity 5 / 5 (23) | comments 21

A water ocean on Titan?

Oddities in the rotation of Saturn's largest moon Titan might add to growing evidence that it harbors an underground ocean, researchers suggest.

Space & Earth / Space Exploration

created May 05, 2011 | popularity 5 / 5 (23) | comments 57 | with audio podcast

Cassini finds oxygen-carbon dioxide atmosphere on Saturn's moon Rhea

(PhysOrg.com) -- In a flyby past Rhea, Saturn's second-largest moon, NASA's spacecraft Cassini has revealed the presence of a thin atmosphere of 70 percent oxygen and 30 percent carbon dioxide, which is apparently ...

Space & Earth / Space Exploration

created Nov 26, 2010 | popularity 4.7 / 5 (23) | comments 10 | with audio podcast report

Strongest evidence yet indicates Enceladus hiding saltwater ocean

(PhysOrg.com) -- Samples of icy spray shooting from Saturn's moon Enceladus collected during Cassini spacecraft flybys show the strongest evidence yet for the existence of a large-scale, subterranean saltwater ...

Space & Earth / Space Exploration

created Jun 22, 2011 | popularity 4.3 / 5 (23) | comments 29 | with audio podcast

What caused a giant arrow-shaped cloud on Saturn's moon Titan?

(PhysOrg.com) -- Why does Titan, Saturn's largest moon, have what looks like an enormous white arrow about the size of Texas on its surface?

Space & Earth / Space Exploration

created Aug 16, 2011 | popularity 4.5 / 5 (20) | comments 36 | with audio podcast

Avoid swimming in interplanetary lakes: Research confirms oily 'water' on Saturn's moon

Titan, one of Saturn's moons, is the only moon in the solar system with an atmosphere -- ten times denser than the atmosphere of Earth. Five years ago, the Cassini-Huygens mission to Saturn, a collaboration ...

Space & Earth / Space Exploration

created Sep 21, 2010 | popularity 4.2 / 5 (21) | comments 11 | with audio podcast

A new theory to explain superrotation on Venus

(PhysOrg.com) -- One of the mysteries in our Solar System is superrotation, a phenomenon known since the late 1960s, in which the winds on Venus blow faster than the planet rotates. Scientists have proposed ...

Space & Earth / Space Exploration

created May 31, 2010 | popularity 4.8 / 5 (18) | comments 1 | with audio podcast report

Voyager instrument cooling after heater turned off

(PhysOrg.com) -- In order to reduce power consumption, mission managers have turned off a heater on part of NASA's Voyager 1 spacecraft, dropping the temperature of its ultraviolet spectrometer instrument ...

Space & Earth / Space Exploration

created Jan 18, 2012 | popularity 4.7 / 5 (18) | comments 22 | with audio podcast

Computer simulation shows Solar System once had an extra planet

(PhysOrg.com) -- A new study published on arXiv.org shows that, based on computer simulations, Jupiter, Saturn, Uranus and Neptune may not have been the only gas giants in our solar system. According to David ...

Space & Earth / Astronomy

created Sep 22, 2011 | popularity 4.2 / 5 (20) | comments 13 | with audio podcast report

Cassini successfully flies over Enceladus

These raw, unprocessed images of Saturn's moons Enceladus and Tethys were taken on April 14, 2012, by NASA's Cassini spacecraft.

Space & Earth / Space Exploration

created Apr 17, 2012 | popularity 4.6 / 5 (18) | comments 0 | with audio podcast

Icy moons of Saturn and Jupiter may have conditions needed for life

(PhysOrg.com) -- Scientists once thought that life could originate only within a solar system's "habitable zone," where a planet would be neither too hot nor too cold for liquid water to exist on its surface. ...

Space & Earth / Astronomy

created Dec 15, 2009 | popularity 4.8 / 5 (17) | comments 0

50 new exoplanets discovered by HARPS

Astronomers using ESO's world-leading exoplanet hunter HARPS have today announced a rich haul of more than 50 new exoplanets, including 16 super-Earths, one of which orbits at the edge of the habitable zone ...

Space & Earth / Astronomy

created Sep 12, 2011 | popularity 4.8 / 5 (17) | comments 14 | with audio podcast

Saturn

Saturn is the sixth planet from the Sun and the second largest planet in the Solar System, after Jupiter. Saturn, along with Jupiter, Uranus and Neptune, is classified as a gas giant. Together, these four planets are sometimes referred to as the Jovian, meaning "Jupiter-like", planets.

Saturn is named after the Roman god Saturn (that became the namesake of Saturday), equated to the Greek Kronos (the Titan father of Zeus) the Babylonian Ninurta and to the Hindu Shani. Saturn's symbol represents the god's sickle (Unicode: ♄).

The planet Saturn is composed of hydrogen, with small proportions of helium and trace elements. The interior consists of a small core of rock and ice, surrounded by a thick layer of metallic hydrogen and a gaseous outer layer. The outer atmosphere is generally bland in appearance, although long-lived features can appear. Wind speeds on Saturn can reach 1,800 km/h, significantly faster than those on Jupiter. Saturn has a planetary magnetic field intermediate in strength between that of Earth and the more powerful field around Jupiter.

Saturn has a prominent system of rings, consisting mostly of ice particles with a smaller amount of rocky debris and dust. Sixty-one known moons orbit the planet, not counting hundreds of "moonlets" within the rings. Titan, Saturn's largest and the Solar System's second largest moon (after Jupiter's Ganymede), is larger than the planet Mercury and is the only moon in the Solar System to possess a significant atmosphere.

For more information about Saturn, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Related topics: cassini spacecraft , nasa , moon , solar system , earth