‘카시니’호 토성 사진 > 행 성

▲ 토성 궤도를 돌고 있는 우주선 ‘카시니’호가 7일 보내온 토성의 ‘A’ 고리 사진. 안쪽은 붉은색, 바깥쪽으로 갈수록 청록색을 띤 동심원 모양을 하고 있다. 고리가 청록빛을 띠는 것은 얼음덩어리가 아주 촘촘하게 모여있음을 의미한다. 토성에는 A부터 G까지 모두 7개의 고리가 있는데, 이 중 A는 가장 바깥쪽 고리이다. 콜로라도(미국)=AP

This ultraviolet image released July 7, 2004, from the Cassini spacecraft in orbit around Saturn shows, from the inside out, the "Cassini division" in faint red at left is followed by the A ring in its entirety. The A ring begins with a "dirty" interior of red followed by a general pattern of more turquoise as it spreads away from the planet, which indicates denser material made up of ice. The red band roughly three-fourths of the way outward in the A ring is known as the Encke gap. Such information hints at the origin and evolution of the rings, according to scientists at the University of Colorado at Boulder who are involved in the mission managed by NASA's Jet Propulsion Laboratory in Pasadena, Calif. This image was made by a $12.5 million instrument called the Ultraviolet Imaging Spectrograph, known as UVIS for short, that was built at Boulder. (AP Photo/University of Colorado, LASP)

Fri Jul 2, 6:34 PM ET

This true-color image taken in visible wavelengths by the Cassini spacecraft on June 10, 2004 and released by NASA (news - web sites) on Friday, July 2, 2004, shows Titan, a moon of Saturn, enveloped in a photochemical smog. This atmosphere, rich in organic material, gives the moon a smooth, featureless, orange glow. The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. (AP Photo/ NASA, JPL)

Fri Jul 2, 7:23 PM ET

The first images transmitted from the Cassini spacecraft during its orbit of Saturn are shown during a news conference at the Jet Propulsion Laboratory in Pasadena, California July 1, 2004. An eruption of atomic oxygen spotted around Saturn by the Cassini spacecraft suggests that the planet's iconic rings are eroding and could be gone in 100 million years, NASA scientists said on July 2. Photo by Robert Galbraith/Reuters

Sat Jul 3, 4:52 PM ET

This image of Saturn's moon Titan, taken by the Cassini spacecraft's visual and infrared mapping spectrometer and released Saturday, July 3, 2004, shows the southern hemisphere of the moon in near-infrared colors, some three times deeper in the red visible to the human eye. (AP Photo/NASA (news - web sites)/JPL/University of Arizona)

Sat Jul 3, 5:04 PM ET

This image of Saturn's moon Titan, taken by the Cassini spacecraft's visual and infrared mapping spectrometer and released Saturday, July 3, 2004, shows the southern hemisphere of the moon in near-infrared colors. The image shows a false-color combination of three previous images. The yellow areas correspond to the hydrocarbon-rich regions, while the green areas are the icier regions. Here, a methane cloud appears white, as it is bright in all three colors. (AP Photo/NASA /JPL/University of Arizona)

Sat Jul 3, 5:28 PM ET

These images of Saturn's moon Titan, were taken by the Cassini spacecraft's visual and infrared mapping spectrometer and released Saturday, July 3, 2004, show its southern hemisphere. The different colors in the images are due to different wavelengths of light. The left image shows, in the darker regions possibly relatively pure water ice, while the brighter regions likely have a much higher amount of non-ice materials such as simple hydrocarbons. The middle image shows a very dark surface almost everywhere, as expected for a surface of water ice and simple hydrocarbons. The image on the right is similar to the left image, indicating dark icy regions and brighter hydrocarbon-rich materials. A bright cloud of methane particles is apparent in all three images near the south pole. (AP Photo/NASA /JPL/University of Arizona)

Sat Jul 3, 6:46 PM ET

This sequence of images illustrates the evolution of a field of clouds near Saturn's moon Titan's south pole over a period of almost five hours, acquired on July 2, 2004 by NASA 's Cassini spacecraft at ranges of 364,000 to 339,000 kilometers (226,170 to 210,600 miles), and released July 3. . These bright clouds, believed to be composed of methane, appear in generally the same area where Earth-based astronomers have previously detected clouds. Cassini also saw clouds in this region during its approach to Saturn. The smallest features that can be discerned in the clouds are roughly 10 kilometers ( 6 miles) across. (AP Photo/NASA/JPL/Space Science Institute)

Sat Jul 3, 7:43 PM ET

A mosaic of images show Saturn's moon Titan's south polar region acquired as Cassini passed by at a range of 339,000 kilometers (210,600 miles) on July 2, 2004 and released July 3, were acquired through special filters designed to see through the thick haze and atmosphere. The surface features become more blurry toward the limb, where the light reflected off the surface must pass through more atmosphere before reaching the camera. The bright spots near the bottom represent a field of clouds near the south pole. There are many strange dark and bright patterns on Titan's surface - linear, sinuous and circular - whose origins are not yet understood. The smallest features detected on the surface are about 10 kilometers (6 miles) wide. (AP Photo/NASA /JPL/Space Science Institute)

This mosaic of images taken by the Cassini spacecraft as it approached Saturn shows the surface features of Titan, from the dark 'H' on the left to the bright observation area at the south pole on the right. Visible in the center is the location where the spacecraft's Huygens probe will descend in January 2005. The Cassini spacecraft pierced the haze enveloping Titan, Saturn's largest moon, to reveal surface details that already have shattered theories about its composition, scientists said on Saturday. Cassini, launched nearly seven years ago by an international team of scientists, became the first spacecraft to orbit Saturn and its rings and moons during an 'orbit insertion' maneuver on Wednesday. (EDITORIAL USE ONLY) REUTERS/HO/NASA /JPL/Space Science Institute / Reuters - Jul 03 4:39 PM

Shown here is an enlargement of a region of Titan imaged on July 2, 2004. This image was taken at a distance of 210,600 miles and shows brightness variations on the surface of Titan and a bright field of clouds near the south pole. The Cassini spacecraft pierced the haze enveloping Titan, Saturn's largest moon, to reveal surface details that already have shattered theories about its composition. Cassini, launched nearly seven years ago by an international team of scientists, became the first spacecraft to orbit Saturn and its rings and moons during an 'orbit insertion' maneuver on Wednesday. (NASA /JPL/Space Science Institute via Reuters ) Reuters - Jul 04 10:49 AM

This composite of two images, taken by the Cassini spacecraft, shows a wide view of Saturn. (AP/NASA , JPL) Canadian Press - Jul 08 12:34 PM

An image taken by the Cassini spacecraft on July 3, 2004 and received on Earth on the same day shows the planet Saturn casting a shadow over its rings. The camera was pointing toward Saturn at approximately 1,513,849 kms away, and the image was taken using the CL1 and CL2 filters. This image has not been validated or calibrated. Cassini, launched nearly seven years ago by an international team of scientists, became the first spacecraft to orbit Saturn and its rings and moons during an 'orbit insertion' maneuver last Wednesday. The $3 billion Cassini mission, a joint project of NASA , and the European and Italian space agencies, is hailed as a model of international cooperation, with scientists from 17 countries participating. EDITORIAL USE ONLY REUTERS/Courtesy NASA/JPL-Caltech Reuters - Jul 05 5:19 PM

This image posted July 9, 2004 shows (L to R) the outer portion of the C ring and inner portion of the B ring around Saturn. The images taken during the Cassini spacecraft's orbital insertion on June 30 and show definite compositional variation within the rings. The B ring begins a little more than halfway across the image. The general pattern is from 'dirty' particles indicated by red to cleaner ice particles shown in turquoise in the outer parts of the rings. The ring system begins from the inside out with the D, C, B and A rings followed by the F, G and E rings. This image was taken with the Ultraviolet Imaging Spectrograph instrument, which is capable of resolving the rings to show features up to 97 kilometers (60 miles) across, roughly 100 times the resolution of ultraviolet data obtained by the Voyager 2 spacecraft. The $3 billion Cassini mission, a joint project of NASA , and the European and Italian space agencies, is hailed as a model of international cooperation, with scientists from 17 countries participating. EDITORIAL USE ONLY REUTERS/NASA/JPL-Caltech Reuters - 8 hours, 8 minutes ago

토성 탐사선 카시니호가 촬영해 전송해 온 토성 고리의 자외선 사진. 7일 공개된 이 사진은 토성 고리의 바깥 부분에 얼음이 있다는 증거라고 이번 우주계획에 참여한 콜로라도대 과학자들이 밝혔다. 붉은색 부분은 ‘먼지’ 분자들로 만들어진 것으로 추정되는 고리, 청록색 부분은 얼음으로 된 고리이다. AP 2004-07-08

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