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s******o
发帖数: 298 | 2 Haze on the Saturn-bound spacecraft's narrow-angle camera has gone away.
by Vanessa Thomas
On July 1, 2004, the Cassini spacecraft will place itself into orbit around
Saturn and begin to capture images of the Ringed Planet unlike any we've seen
before — that is, if its vision is clear.
Following a routine heating in late May 2001 and subsequent cool-down to its
regular temperature, Cassini's narrow-angle camera began returning images of
stars with fuzzy halos around them — much like stars viewed |
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s*****t
发帖数: 1994 | 3 Cassini Closes in on Saturn
Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: Are they gone? They were not originally predicted to even be there. The mystery revolves around strange shadow-like spokes that appeared on Saturn's large B-ring, the large middle ring in the complex system of particles that orbits Saturn.
The spokes were discovered 23 years ago by the passing Voyager spacecraft and attributed to very fine dust of unknown origin. The missing spokes were noted in the above |
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l**********n
发帖数: 72 | 4 摘自JPL主页
CLOUDS DANCE IN JUPITER
Two short movie clips of Jupiter based on images
taken
by NASA's Cassini spacecraft show dynamic clouds in action
on
the giant planet.
One clip, from Cassini images taken at uneven time
intervals over a five-day period in October, catches winds
swirling counterclockwise around Jupiter's Great Red Spot.
Dark and light bands that form horizontal stripes around the
planet can be seen rushing in opposite directions to each
other.
The other clip shows the |
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s******o
发帖数: 298 | 5 Haze on the Saturn-bound spacecraft's narrow-angle camera has gone away.
by Vanessa Thomas
On July 1, 2004, the Cassini spacecraft will place itself into orbit around
Saturn and begin to capture images of the Ringed Planet unlike any we've seen
before — that is, if its vision is clear.
Following a routine heating in late May 2001 and subsequent cool-down to its
regular temperature, Cassini's narrow-angle camera began returning images of
stars with fuzzy halos around them — much like stars viewed |
|
s*****t
发帖数: 1994 | 6 Cassini Closes in on Saturn
Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: Are they gone? They were not originally predicted to even be there. The mystery revolves around strange shadow-like spokes that appeared on Saturn's large B-ring, the large middle ring in the complex system of particles that orbits Saturn.
The spokes were discovered 23 years ago by the passing Voyager spacecraft and attributed to very fine dust of unknown origin. The missing spokes were noted in the above |
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a*****i
发帖数: 4391 | 7 【 以下文字转载自 SciFiction 讨论区 】
【 原文由 ayanami 所发表 】
The Cassini Division by Ken MacLeod
Review Copyright (c) 1999 Aaron M. Renn
Conclusion: Believe the Hype - Highly Recommended
When this book came in the mail, I was pretty upset. I couldn't believe I
just paid $23 for a book that was only 240 pages long. After reading it
though, I realized just how fully I'd been sucked in to the modern SF's
notion that only 500+ page epics can qualify as great novels. In the old
days, lots of gre |
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a*****i
发帖数: 4391 | 8 The Cassini Division by Ken MacLeod
Review Copyright (c) 1999 Aaron M. Renn
Conclusion: Believe the Hype - Highly Recommended
When this book came in the mail, I was pretty upset. I couldn't believe I
just paid $23 for a book that was only 240 pages long. After reading it
though, I realized just how fully I'd been sucked in to the modern SF's
notion that only 500+ page epics can qualify as great novels. In the old
days, lots of great books were under 300 pages. MacLeod proves |
|
s*****t
发帖数: 1994 | 9 Cassini Approaches Saturn
Credit: Cassini Imaging Team, SWRI, JPL, ESA, NASA
Explanation: Cassini, a robot spacecraft launched in 1997 by NASA, is close enough now to
resolve many rings and moons of its destination planet: Saturn. The spacecraft has closed to
about two Earth-Sun separations from the ringed giant. Last month, Cassini snapped several
images during an engineering test. These images have been combined into the
contrast-enhanced color composite pictured above. Saturn's r |
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s*****t
发帖数: 1994 | 10 Jupiter's Great Dark Spot
Credit: Cassini Imaging Team, Cassini Project, NASA
Explanation: Seventeenth century astronomer Giovanni Domenico Cassini was an astute
observer of Jupiter's Great Red Spot. So it seems only fitting that his namesake, the Cassini
spacecraft, has enabled detailed observations of another planet-sized blemish -- Jupiter's
Great Dark Spot. Unlike the Red Spot, the Great Dark Spot lies near Jupiter's north pole and
seems to appear and disappear over periods of m |
|
s*****t
发帖数: 1994 | 11 Cassini Approaches Saturn
Credit: Cassini Imaging Team, SWRI, JPL, ESA, NASA
Explanation: Cassini, a robot spacecraft launched in 1997 by NASA, is close enough now to
resolve many rings and moons of its destination planet: Saturn. The spacecraft has closed to
about two Earth-Sun separations from the ringed giant. Last month, Cassini snapped several
images during an engineering test. These images have been combined into the
contrast-enhanced color composite pictured above. Saturn's r |
|
s*****t
发帖数: 1994 | 12 Jupiter's Great Dark Spot
Credit: Cassini Imaging Team, Cassini Project, NASA
Explanation: Seventeenth century astronomer Giovanni Domenico Cassini was an astute
observer of Jupiter's Great Red Spot. So it seems only fitting that his namesake, the Cassini
spacecraft, has enabled detailed observations of another planet-sized blemish -- Jupiter's
Great Dark Spot. Unlike the Red Spot, the Great Dark Spot lies near Jupiter's north pole and
seems to appear and disappear over periods of m |
|
f******o
发帖数: 2469 | 13 中国怕啥 是美国怕好不好
The Silly Reason the Chinese Aren't Allowed on the Space Station
Welcome home: Nie Haisheng is helped out of his Shenzhou 10 spacecraft
after a 15-day mission in 2013.
Welcome home: Nie Haisheng is helped out of his Shenzhou 10 spacecraft after
a 15-day mission in 2013. AFP/Getty Images
BY JEFFREY KLUGER
MAY 29, 2015
IDEAS
Kluger is Editor at Large for TIME.
Geopolitics can be child’s play—literally. How else would you describe the
did-not! did-too! brawl that can result when one co... 阅读全帖 |
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w****l
发帖数: 344 | 16 木星，伊俄和影子
Credit: Cassini Imaging Team, Cassini Project, NASA
说明: 上图展示的是气体行星巨人－ 木星和它最内侧的伽利略卫星 －伊俄。 伊俄
左方的黑点则是它自己的影子，在木星上的阴影区内将会看到日食，从地球上看去，
通常可以看到木星的月亮划过行星巨人盘面的庞大身影。这张将真实色彩做强化对比
的影像，是两年前无人宇宙飞船卡西尼(Cassini)号经过木星时拍摄的，它将于 2004
年飞抵土星。 |
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s*****t
发帖数: 1994 | 17 Jupiter Unpeeled
Credit: Cassini Imaging Team, Cassini Project, NASA
Explanation: Slice Jupiter from pole to pole, peel back its outer layers of clouds, stretch them onto a flat surface
... and for all your trouble you'd end up with something that looks a lot like this. Scrolling right will reveal the full
picture, a color mosaic of Jupiter from the Cassini spacecraft. The mosaic is actually a single frame from a
fourteen frame movie constructed from image data recorded by Ca |
|
s*****t
发帖数: 1994 | 18 Jupiter Portrait
Credit: Cassini Imaging Team, Cassini Project, NASA
Explanation: Every day is a cloudy day on Jupiter, the Solar System's reigning gas giant. And swirling cloud tops
are all you see in this stunningly detailed true color image, a portion of a large digital mosaic portrait of Jupiter
recorded from the Cassini spacecraft during its Jovian flyby in December 2000. The smallest features visible are
about 60 kilometers across. Jupiter's composition is dominated by |
|
s*****t
发帖数: 1994 | 19 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 |
|
s*****t
发帖数: 1994 | 20 Saturn's Dragon Storm
Image Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: Dubbed the "Dragon Storm", convoluted, swirling cloud features
are tinted orange in this false-color, near-infrared image of Saturn's
southern hemisphere. In one of a series of discoveries announced by Cassini
researchers, the Dragon Storm was found to be responsible for mysterious
mysterious bursts of radio static monitored by Cassini instruments during
the last year as the spacecraft orbited the ringed p |
|
s*****t
发帖数: 1994 | 21 Earth from Saturn
Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: What's that pale blue dot in this image taken from Saturn?
Earth. The robotic Cassini spacecraft looked back toward its old home world
earlier this month as it orbited Saturn. Using Saturn itself to block the
bright Sun, Cassini imaged a faint dot on the right of the above photograph.
That dot is expanded on the image inset, where a slight elongation in the
direction of Earth's Moon is visible. Vast water oceans mak |
|
w****l
发帖数: 344 | 22 木星，伊俄和影子
Credit: Cassini Imaging Team, Cassini Project, NASA
说明: 上图展示的是气体行星巨人－ 木星和它最内侧的伽利略卫星 －伊俄。 伊俄
左方的黑点则是它自己的影子，在木星上的阴影区内将会看到日食，从地球上看去，
通常可以看到木星的月亮划过行星巨人盘面的庞大身影。这张将真实色彩做强化对比
的影像，是两年前无人宇宙飞船卡西尼(Cassini)号经过木星时拍摄的，它将于 2004
年飞抵土星。 |
|
s*****t
发帖数: 1994 | 23 Jupiter Unpeeled
Credit: Cassini Imaging Team, Cassini Project, NASA
Explanation: Slice Jupiter from pole to pole, peel back its outer layers of clouds, stretch them onto a flat surface
... and for all your trouble you'd end up with something that looks a lot like this. Scrolling right will reveal the full
picture, a color mosaic of Jupiter from the Cassini spacecraft. The mosaic is actually a single frame from a
fourteen frame movie constructed from image data recorded by Ca |
|
s*****t
发帖数: 1994 | 24 Jupiter Portrait
Credit: Cassini Imaging Team, Cassini Project, NASA
Explanation: Every day is a cloudy day on Jupiter, the Solar System's reigning gas giant. And swirling cloud tops
are all you see in this stunningly detailed true color image, a portion of a large digital mosaic portrait of Jupiter
recorded from the Cassini spacecraft during its Jovian flyby in December 2000. The smallest features visible are
about 60 kilometers across. Jupiter's composition is dominated by |
|
s*****t
发帖数: 1994 | 25 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 |
|
s*****t
发帖数: 1994 | 26 Saturn's Dragon Storm
Image Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: Dubbed the "Dragon Storm", convoluted, swirling cloud features
are tinted orange in this false-color, near-infrared image of Saturn's
southern hemisphere. In one of a series of discoveries announced by Cassini
researchers, the Dragon Storm was found to be responsible for mysterious
mysterious bursts of radio static monitored by Cassini instruments during
the last year as the spacecraft orbited the ringed p |
|
s*****t
发帖数: 1994 | 27 Earth from Saturn
Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: What's that pale blue dot in this image taken from Saturn?
Earth. The robotic Cassini spacecraft looked back toward its old home world
earlier this month as it orbited Saturn. Using Saturn itself to block the
bright Sun, Cassini imaged a faint dot on the right of the above photograph.
That dot is expanded on the image inset, where a slight elongation in the
direction of Earth's Moon is visible. Vast water oceans mak |
|
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p*p
发帖数: 75 | 30 if use VS.NET 2002/2003, try Cassini Web Server. it's part of WebMatrix projec
t.
if you use the new VS.NET 2005 beta2, it has Cassini Web Server built-in. no I
IS needed at all. |
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s******o
发帖数: 298 | 31 SOLAR-SYSTEM FLIGHT RECOMMENDATIONS (excluding Mars)
Priority Mission Description
Small missions (<$325 million)
1 Discovery missions Small, innovative missions led by a single
principal investigator
2 Cassini Expanded An extension of the Cassini orbiter's mission
at Saturn
"New Frontiers" missions (<$650 million)
1 Kuiper Belt-Pluto Explorer A flyby mission of several Kuiper Belt
|
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s*****t
发帖数: 1994 | 32 Jupiter, Io and Shadow
Credit: Cassini Imaging Team, Cassini Project, NASA
Explanation: Pictured above is the innermost of Jupiter's Galilean satellites, Io, superposed
in front of the gas giant planet. To the left of Io is a dark spot that is Io's own shadow. A solar
eclipse would be seen from within the shadow spot on Jupiter. Viewed from planet Earth,
similar shadows of Jupiter's large moons can often be seen crossing the giant planet's disk.
But during the next several months, t |
|
s*****t
发帖数: 1994 | 33 Eyeful of Saturn
Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: Now a bright speck of light wandering through Earth's night sky, magnificent planet Saturn lies nearly 1.5 billion kilometers from the Sun. But after an interplanetary voyage of seven years the planet's stunning rings nearly fill the field
of the Cassini spacecraft's narrow angle camera in this image recorded on March 27. Tip to tip, the ring system spans about 270,000 kilometers. Named for discoverers, the large, ea |
|
s*****t
发帖数: 1994 | 34 Blue Saturn
Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: Serene blue hues highlight this view of Saturn's northern hemisphere from the Cassini spacecraft. The image has been adjusted to approximate the natural blue color of visible sunlight scattered by the gas giant's upper atmosphere. Saturn's
famous rings cast the dark shadows stretching across the frame with infamous cratered moon Mimas lurking at the lower left. Orbiting beyond the main inner rings, Mimas itself is 400 kil |
|
s*****t
发帖数: 1994 | 35 Saturn's Moon Rhea from Cassini
Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: Each moon of Saturn seems to come with its own mystery. Rhea, Saturn's second largest moon behind Titan, shows unusual wisps, visible above as light colored streaks. Higher resolution images of the wisps show them to be made of long braided
fractures. Rhea is composed mostly of water ice, but likely has a small rocky core. Rhea's rotation and orbit are locked together, just like Earth's Moon, so that o |
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s*****t
发帖数: 1994 | 36 Ski Enceladus
Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: Small, icy, inner moon of Saturn, Enceladus is only about 500
kilometers in diameter. But the distant world does reflect over 90
percent of the sunlight it receives, giving its surface about the same reflectivity
as fresh snow. Seen here in a sharp view from the Cassini
spacecraft's recent flyby, Enceladus shows a variety of surface
features and very few impact craters - indicating that it has been an active
world even |
|
s*****t
发帖数: 1994 | 37 Saturn from Above
Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: This image of Saturn could not have been taken from Earth. No
Earth based picture could possibly view the night side of Saturn and the
corresponding shadow cast across Saturn's rings. Since Earth is much closer
to the Sun than Saturn, only the day side of the planet is visible from the
Earth. In fact, this image mosaic was taken in January by the robotic
Cassini spacecraft now orbiting Saturn. The beautiful rings of |
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s*****t
发帖数: 1994 | 38 In the shadow of Saturn, unexpected wonders appear. The robotic Cassini
spacecraft now orbiting Saturn drifted in giant planet's shadow for about 12
hours in 2006 and looked back toward the eclipsed Sun. Cassini saw a view
unlike any other. First, the night side of Saturn is seen to be partly lit
by light reflected from its own majestic ring system. Next, the rings
themselves appear dark when silhouetted against Saturn, but quite bright
when viewed away from Saturn, slightly scattering sunlight,... 阅读全帖 |
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Z**R
发帖数: 1233 | 39 Saturn's moon Enceladus surprisingly comet-like
* 21:24 26 March 2008
* NewScientist.com news service
* Stephen Battersby
Saturn's curious moon Enceladus appears to have the same chemical makeup as
a comet, according to the latest results from the Cassini probe. That's a
big surprise, as Enceladus should have formed in very different conditions
from those of comets.
On 12 March, Cassini flew through the huge plume of steam and other gases
that spews from fissures at the moon's south |
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s******o
发帖数: 298 | 40 SOLAR-SYSTEM FLIGHT RECOMMENDATIONS (excluding Mars)
Priority Mission Description
Small missions (<$325 million)
1 Discovery missions Small, innovative missions led by a single
principal investigator
2 Cassini Expanded An extension of the Cassini orbiter's mission
at Saturn
"New Frontiers" missions (<$650 million)
1 Kuiper Belt-Pluto Explorer A flyby mission of several Kuiper Belt
|
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s*****t
发帖数: 1994 | 41 Jupiter, Io and Shadow
Credit: Cassini Imaging Team, Cassini Project, NASA
Explanation: Pictured above is the innermost of Jupiter's Galilean satellites, Io, superposed
in front of the gas giant planet. To the left of Io is a dark spot that is Io's own shadow. A solar
eclipse would be seen from within the shadow spot on Jupiter. Viewed from planet Earth,
similar shadows of Jupiter's large moons can often be seen crossing the giant planet's disk.
But during the next several months, t |
|
s*****t
发帖数: 1994 | 42 Eyeful of Saturn
Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: Now a bright speck of light wandering through Earth's night sky, magnificent planet Saturn lies nearly 1.5 billion kilometers from the Sun. But after an interplanetary voyage of seven years the planet's stunning rings nearly fill the field
of the Cassini spacecraft's narrow angle camera in this image recorded on March 27. Tip to tip, the ring system spans about 270,000 kilometers. Named for discoverers, the large, ea |
|
s*****t
发帖数: 1994 | 43 Blue Saturn
Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: Serene blue hues highlight this view of Saturn's northern hemisphere from the Cassini spacecraft. The image has been adjusted to approximate the natural blue color of visible sunlight scattered by the gas giant's upper atmosphere. Saturn's
famous rings cast the dark shadows stretching across the frame with infamous cratered moon Mimas lurking at the lower left. Orbiting beyond the main inner rings, Mimas itself is 400 kil |
|
s*****t
发帖数: 1994 | 44 Saturn's Moon Rhea from Cassini
Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: Each moon of Saturn seems to come with its own mystery. Rhea, Saturn's second largest moon behind Titan, shows unusual wisps, visible above as light colored streaks. Higher resolution images of the wisps show them to be made of long braided
fractures. Rhea is composed mostly of water ice, but likely has a small rocky core. Rhea's rotation and orbit are locked together, just like Earth's Moon, so that o |
|
s*****t
发帖数: 1994 | 45 Ski Enceladus
Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: Small, icy, inner moon of Saturn, Enceladus is only about 500
kilometers in diameter. But the distant world does reflect over 90
percent of the sunlight it receives, giving its surface about the same reflectivity
as fresh snow. Seen here in a sharp view from the Cassini
spacecraft's recent flyby, Enceladus shows a variety of surface
features and very few impact craters - indicating that it has been an active
world even |
|
s*****t
发帖数: 1994 | 46 Saturn from Above
Credit: Cassini Imaging Team, SSI, JPL, ESA, NASA
Explanation: This image of Saturn could not have been taken from Earth. No
Earth based picture could possibly view the night side of Saturn and the
corresponding shadow cast across Saturn's rings. Since Earth is much closer
to the Sun than Saturn, only the day side of the planet is visible from the
Earth. In fact, this image mosaic was taken in January by the robotic
Cassini spacecraft now orbiting Saturn. The beautiful rings of |
|
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发帖数: 1 | 48 【翻墙必看】抓江泽民日子越来越近？
【大纪元2016年04月18日讯】大纪元每日为读者梳理翻墙必看的重点新闻：
1、“610”系统三头目落马 清算延烧江泽民
到目前为止，涉严重迫害法轮功的三名“610”系统头目落马，他们分别是周永康、李
东生和张越。石久天表示，张越落马，以及随之牵出的江泽民命令公安部成立“二十六
局”的内幕，显示抓捕江泽民的日子越来越近。
2、官媒再刊文承认中共可能被历史淘汰
近日，中共官媒再提亡党危机，并称“这决不是危言耸听”。此前，中共多个领导人已
数次发出亡党危机警告。实际上，早已民心尽失的中共正在走向解体，中共灭亡是即将
到来的现实。
3、一周大事解读：习海内外围剿江 张春贤高危
在大陆经济危机加剧的压力之下，习阵营海内外查处江泽民集团黑金的行动需速战速决
；预期后续有更多金融“老虎”被抛出。围剿江泽民加速之际，更多江派背景的高官如
政治局委员、上海书记韩正、新疆书记张春贤的仕途命运充满变数，如果不能及时成功
倒戈打江，或将被提前拿下。
4、丑闻再加码 传李长春嫖娼视频遭张越偷拍
据报导，刚刚落马的河北政法委书记张越，当年不仅和前中共国安部副部长马建一起，
协... 阅读全帖 |
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n*********n
发帖数: 580 | 49 nasa发射的voyager和cassini都是核裂变engine，个头最多和check in的行李箱一样大。
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y***l
发帖数: 6963 | 50 cassini就是核动力的
估计是供电用的，调整轨道还得用喷射，要么燃料，要么离子流 |
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