Latest Planetary ring Stories

Chiron saturn-like rings
2015-03-16 11:44:16

There are only five bodies in our solar system that are known to bear rings. The most obvious is the planet Saturn; to a lesser extent, rings of gas and dust also encircle Jupiter, Uranus, and Neptune. The fifth member of this haloed group is Chariklo, one of a class of minor planets called centaurs: small, rocky bodies that possess qualities of both asteroids and comets.

2015-03-11 16:20:40

WASHINGTON, March 11, 2015 /PRNewswire-USNewswire/ -- NASA's Cassini spacecraft has provided scientists the first clear evidence that Saturn's moon Enceladus exhibits signs of present-day hydrothermal

2015-01-28 12:10:30

Watch out Saturn, there's a new star in town. A huge star has been discovered with rings 200 times bigger and brighter than Saturn's, and a recent eclipse allowed for scientists to gather more intel on this galactic super star.

saturn Shadows and Rings
2014-09-09 07:47:22

Compared to the age of the solar system -- about four-and-a-half billion years -- a couple of decades are next to nothing. Some planetary locales change little over many millions of years, so for scientists who study the planets, any object that evolves on such a short interval makes for a tempting target for study.

dancing auroral lights on Saturn
2014-05-19 11:09:00

Saturn's auroras are caused by the same phenomenon which leads to dramatic auroral displays on Earth, University of Leicester research shows.

What Would Happen If Saturn Came Extremely Close To Earth?
2014-05-14 07:38:35

While astronomers enjoyed the best view of Saturn this past weekend, an animator created a new video depicting what would happen if the people of Earth got an extreme close-up of the sixth planet from the Sun.

Saturn's Hexagon: An amazing Phenomenon
2014-04-15 10:10:02

Researchers of the University of the Basque Country reveal some of the secrets of Saturn's mysterious hexagonal wave, including its rotation period, which could be that of the planet itself

Cassini Eyes Possible New Moon Forming In Saturn's Orbit
2014-04-15 08:45:46

Newly released images from NASA’s Cassini probe have revealed the “birthing” of a tiny moon in orbit around Saturn. The images, taken exactly one year ago on Tuesday, showed evidence of the formation of a tiny icy moon, named “Peggy”

2014-04-14 16:21:17

WASHINGTON, April 14, 2014 /PRNewswire-USNewswire/ -- NASA's Cassini spacecraft has documented the formation of a small icy object within the rings of Saturn that may be a new moon, and may

2014-03-27 03:37:28

Astronomers writing in the journal Nature say they have observed a minor planet which contains two rings of ice and pebbles for the first time.

Latest Planetary ring Reference Libraries

2004-10-19 04:45:42

Planetary Ring -- A planetary ring is a ring of dust and other small particles orbiting around a planet in a flat disc-shaped region. The most spectacular and famous planetary rings are those around Saturn, but all four of the solar system's gas giant planets (Jupiter, Saturn, Uranus, Neptune) possess ring systems of their own. The origin of planetary rings is not precisely known, but they are thought to be unstable and dissipate over the course of tens or hundreds of millions of...

2004-10-19 04:45:41

Planet Neptune -- Neptune is the eighth planet from the sun. It is a gas giant. Orbiting so far from the sun, Neptune receives very little heat. Its 'surface' temperature is -218 degrees Celsius (below zero). However, the planet seems to have an internal source of heat. It is thought that this may be leftover heat generated by infalling matter during the planet's birth, now slowly radiating away into space. Neptune's atmosphere has the highest wind speeds in the solar system, up to...

2004-10-19 04:45:41

The Planet Saturn -- in astronomy, 6th planet from the sun. Astronomical and Physical Characteristics of Saturn Saturn's orbit lies between those of Jupiter and Uranus; its mean distance from the sun is c.886 million mi (1.43 billion km), almost twice that of Jupiter, and its period of revolution is about 291/2 years. Saturn appears in the sky as a yellow, starlike object of the first magnitude. When viewed through a telescope, it is seen as a golden sphere, crossed by a series of...

2004-10-19 04:45:40

Jupiter's Moon Adrastea -- Adrastea [a-DRAS-tee-uh] is the second innermost known satellite of Jupiter. Adrastea was the daughter of Jupiter and Ananke and the distributor of rewards and punishments. Adrastea and Metis lie within Jupiter's main ring and may be the source of material for the ring. Very little is known about Adrastea. Discovered by D. Jewitt & E. Danielson Date of discovery 1979 Mass (kg) 1.91e+16 Mass (Earth = 1) 3.1961e-09 Radius (km) 12.5x10x7.5...

2004-10-19 04:45:40

Jupiter's moon Metis -- Metis [MEE-tis] is the innermost known satellite of Jupiter. It was named after a Titaness who was a consort of Zeus (Jupiter). Metis and Adrastea lie within Jupiter's main ring and may be the source of material for the ring. Very little is known about Metis. 40 kilometers (25 miles) in diameter, orbiting 128,000 kilometers (79,500 miles) from Jupiter. Discovered by Stephen Synnott Date of discovery 1979 Mass (kg) 9.56e+16 Mass (Earth = 1)...

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