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Latest Rhea Stories

5bb94d393cbfc703b3fe3f0cacefc58f1
2010-10-20 09:35:00

Taking a long-weekend road trip, NASA's Cassini spacecraft successfully glided near nine Saturnian moons, sending back a stream of raw images as mementos of its adrenaline-fueled expedition. The spacecraft sent back particularly intriguing images of the moons Dione and Rhea. The Dione and Rhea pictures are the highest-resolution views yet of parts of their surfaces. The views of the southern part of Dione's leading hemisphere (the part of the moon that faces forward in its orbit around...

c64b35f31bf40a7e90727354d5501716
2010-10-08 06:31:49

Scientists using data from NASA's Cassini spacecraft have learned that distinctive, colorful bands and splotches embellish the surfaces of Saturn's inner, mid-size moons. The reddish and bluish hues on the icy surfaces of Mimas, Enceladus, Tethys, Dione and Rhea appear to be the aftermath of bombardments large and small. A paper based on the findings was recently published online in the journal Icarus. In it, scientists describe prominent global patterns that trace the trade routes for...

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2010-07-06 07:25:00

Complex interactions between Saturn and its satellites have led scientists using NASA's Cassini spacecraft to a comprehensive model that could explain how oxygen may end up on the surface of Saturn's icy moon Titan. The presence of these oxygen atoms could potentially provide the basis for pre-biological chemistry. The interactions are captured in two papers, one led by John Cooper and another led by Edward Sittler, published in the journal Planetary and Space Science in late 2009. Cooper and...

33d8a4e722407c24cb84c96545a904171
2009-12-23 14:55:00

Like sugar plum fairies in "The Nutcracker," the moons of Saturn performed a celestial ballet before the eyes of NASA's Cassini spacecraft. New movies frame the moons' silent dance against the majestic sweep of the planet's rings and show as many as four moons gliding around one another. To celebrate the holidays, the Cassini imaging team has created a video collection of "mutual events," which occur when one moon passes in front of another, as seen from the spacecraft. Imaging scientists use...

9cc726bbd8bb1b2ccefb5cbbf4a5d6a41
2009-11-23 12:10:00

NASA's Cassini spacecraft has sailed seamlessly through the Nov. 21 flyby of Saturn's moon Enceladus and started transmitting uncalibrated temperature data and images of the rippling terrain. These data and images will be processed and analyzed in the coming weeks. They will help scientists create the most-detailed-yet mosaic image of the southern part of the moon's Saturn-facing hemisphere and a contiguous thermal map of one of the intriguing "tiger stripe" features, with the highest...

2009-06-18 17:00:22

One dad at the National Zoo in Washington -- a male rhea -- is learning that raising children gets easier as time goes on. The zoo's adult male rhea will be celebrating his second straight Father's Day with a brood of his own, having incubated and raised his charges once they were hatched, the zoo said in a news release Thursday. The four chicks, hatched May 8, are reaping the benefits of dad having a year of paternity under his wing. Zoo officials said he seemed unruffled about being a...

2009-02-09 10:39:50

A 6-foot-tall South American bird, a rhea, destroyed several gardens in the English county of Worcestershire after escaping from a farm, the bird's owner says. Sharon Gould, who owns the large rhea bird, said the animal escaped Gouldise Poultry farm by scaling a 3-foot-high fence and soon was on a 7-hour spree of destruction in the area, The Daily Telegraph said Monday. We think he got spooked by a dog and jumped out of his pen and made off across the fields, Gould said of the recent escape...

becaa2eb7f1bede09e731388a45457c71
2008-06-16 19:40:00

Four students have won the Cassini Scientist for a Day contest, with most choosing Rhea, Saturn's second-largest moon, as the best place for scientists to study using NASA's Cassini spacecraft.Contest participants had to choose one of three target areas for Cassini's camera: Saturn's moon Enceladus, Rhea, or a section of Saturn's rings that includes the tiny moon Pan. The students had to write an essay explaining why their chosen snapshot would yield the most scientific rewards, and the...

ea7f6ddc8b2ca3aa3805d91a9fdda7f41
2008-04-15 10:30:00

NASA is extending the international Cassini-Huygens mission by two years. The historic spacecraft's stunning discoveries and images have revolutionized our knowledge of Saturn and its moons. Cassini's mission originally had been scheduled to end in July 2008. The newly-announced two-year extension will include 60 additional orbits of Saturn and more flybys of its exotic moons. These will include 26 flybys of Titan, seven of Enceladus, and one each of Dione, Rhea and Helene. The extension also...

2008-04-04 16:57:20

NASA will turn control of the Cassini spacecraft at Saturn over to students for a day in a contest aimed at boosting interest in science among today's youth. An essay contest for students in grades 5 through 12 will determine which of three science targets Cassini will photograph on June 10, the space agency announced late Thursday. Cassini scientists regularly debate exactly which images of Saturn's many moons and rings will produce the most science results, a task they are...


Latest Rhea Reference Libraries

38_6760737a94bc0eedefa385a7feaa4cc0
2006-10-19 13:26:41

The Rhea is a large flightless bird native to South America. American Rheas live in grassland, savanna, scrub forest, chaparral, and even desert, but prefer areas with at least some tall vegetation. Darwin's Rhea lives in areas of open scrub in the grasslands of Patagonia and on the Andean plateau. It is classified as endangered throughout its range. The Common Rhea, Rhea americana, is not only the largest species of rhea, but also the largest bird in the Americas. Adults weigh up to 66...

38_d07ae35c34bafab0996c01567bdf7a76
2006-09-25 15:21:14

The Ostrich, Struthio camelus, is a flightless bird native to Africa. It is the only living species of its family, Struthionidae. Ostriches occur naturally on the savannas and Sahel of Africa, both north and south of the equatorial forest zone. Other members of this group include rheas, emus, cassowaries and the largest bird ever, the now-extinct Aepyornis. Six subspecies are recognized: S.c. australis in Southern Africa S.c. camelus in North Africa. S.c. massaicus in East Africa. S.c....

10_847eb3ad0e4680644a7b9cff3762be112
2004-10-19 04:45:44

Draco (dragon or serpent) Constellation -- Location: Northern Hemisphere; Coordinates: Right Ascension: 17h; Declination: +65; Source: Creation and dragon myths from Greek, Roman, eastern Mediterranean, Middle East, Indian and Norse cultures Two circumstances lie behind the multitude of myths associated with Draco. First, due to the precession of the Earth, Draco's star Thuban was the pole star approximately 4000 years ago. It would have seemed to ancient sky watchers that the Earth...

4_b983e20f7df3428e0c6ef2ef2a9951672
2004-10-19 04:45:41

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...

4_12c4e8c6fdce5c1feaa213363e5dcebb2
2004-10-19 04:45:41

Saturn's moon Tethys -- Tethys is a moon of Saturn that was discovered by Giovanni Cassini in 1684. Tethys is an icy body similar in nature to Dione and Rhea. The density of Tethys is 1.21 g/cm3, indicating that it is composed almost entirely of water-ice. Tethys's surface is heavily cratered and contains numerous cracks caused by faults in the ice. There are two different types of terrain found on Tethys, one composed of densely cratered regions and the other consisting of a dark...

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Word of the Day
abrosia
  • Wasting away as a result of abstinence from food.
The word 'abrosia' comes from a Greek roots meaning 'not' and 'eating'.