s*****t
发帖数: 1994 | 1 Saturnian Aurora
Credit: J. Trauger (JPL), NASA
Explanation: Saturn's Rings are one of the most spectacular sights in
the solar system. Still, this image from the Hubble Space Telescope offers
a striking view of another kind of ring around Saturn - pole encircling rings
of ultraviolet aurora. Towering more than 1,000 miles above the
cloud tops, these Saturnian auroral displays were thought to be
analogous to Earth's. But following the ebb and flow of Saturn's aurora, with
the Hubble's cameras an |
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s*****t
发帖数: 1994 | 2 Saturnian Aurora
Credit: J. Trauger (JPL), NASA
Explanation: Saturn's Rings are one of the most spectacular sights in
the solar system. Still, this image from the Hubble Space Telescope offers
a striking view of another kind of ring around Saturn - pole encircling rings
of ultraviolet aurora. Towering more than 1,000 miles above the
cloud tops, these Saturnian auroral displays were thought to be
analogous to Earth's. But following the ebb and flow of Saturn's aurora, with
the Hubble's cameras an |
|
s*****t
发帖数: 1994 | 3 Persistent Saturnian Auroras
Credit: J. Clarke (Boston U.) & Z. Levay (STScI), ESA, NASA
Explanation: Are Saturn's auroras like Earth's? To help answer this question,
the Hubble Space Telescope and the Cassini spacecraft monitored Saturn's
South Pole simultaneously as Cassini closed in on the gas giant in
January 2004. Hubble snapped images in ultraviolet light, while Cassini
recorded radio emissions and monitored the solar wind. Like on Earth,
Saturn's auroras make total or partial rings around |
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s*****t
发帖数: 1994 | 4 Persistent Saturnian Auroras
Credit: J. Clarke (Boston U.) & Z. Levay (STScI), ESA, NASA
Explanation: Are Saturn's auroras like Earth's? To help answer this question,
the Hubble Space Telescope and the Cassini spacecraft monitored Saturn's
South Pole simultaneously as Cassini closed in on the gas giant in
January 2004. Hubble snapped images in ultraviolet light, while Cassini
recorded radio emissions and monitored the solar wind. Like on Earth,
Saturn's auroras make total or partial rings around |
|
C********s
发帖数: 495 | 5 我觉得他们俩长得都象外星人
所以灰色的叫土星人 （土土,Saturnian?),黄色的叫火星人（火火，Martian)
//跑！ |
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Z**R
发帖数: 1233 | 6 A colossal new ring has been identified around Saturn.
The dusty hoop extends some 13 million km from the planet, about 50 times
further out into space than its more familiar rings.
Scientists tell the journal Nature that the tenuous ring is probably made up
of debris kicked off Saturn's moon Phoebe by small impacts.
They think this dust then migrates towards the planet where it is picked up
by another Saturnian moon, Iapetus.
The discovery would appear to resolve a longstanding mystery in plane |
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