Search Options
close
Search the following clips:
All Clips
Everyone's Clips
My Guides
Sign Up
Install
Learn More
Login
金星可能曾經近似地球雙胞胎
trent
follow
0
9-17-2009 12:11 AM
24 views
Add a Comment
Login
to Comment. Not a member yet?
Sign up
Today's Top Clips
Israel Finds Remains of Jesus-era Home in Nazareth
Extreme Kids' Playhouses
HP's Facial Tracking Software Fails to See Black People
Republicans And Racism
Copenhagen's Carbon Debt
20 Hilarious School Exam Answers
Revolutioary bicycle lights
Our Churches Are Dead
Cat Found with Paws Glued to Highway
Hotel Igloo Village
visit the
Top Clips page
View the Top Clips from
September 17, 2009
Embed This Clip In Your Site...
<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/a73e9704-24a5-4868-9635-62e5bdffb9bf/CB4914A6-EB2B-404A-A99D-23CAF0AC5E95/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://tw.news.yahoo.com/article/url/d/a/090917/19/1r936.html" href="http://tw.news.yahoo.com/article/url/d/a/090917/19/1r936.html" style="font-size: 11px;">tw.news.yahoo.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://tw.news.yahoo.com/article/url/d/a/090917/19/1r936.html"><H1>科學家:金星可能曾經近似地球雙胞胎</H1> <DIV class="offer"> <LABEL><A target="_blank" href="http://tw.rd.yahoo.com/referurl/news/logo/afp//SIG=11j0rh735/*http://afp.cnanews.gov.tw/client.sample/index.php" title="法新社" linkindex="42"><IMG alt="法新社" src="http://l.yimg.com/f/i/tw/news/newspartner2006/afp.jpg" /></A></LABEL> <SPAN>更新日期:<Q>2009/09/17 02:20</Q></SPAN> <EM>蔡和穎</EM> </DIV> <DIV class="w"> <DIV id="ynwsartcontent"> <TABLE cellspacing="0" class="left"><TBODY><TR><TD><LABEL><A href="http://tw.news.yahoo.com/photo/url/d/i/090917/19/20090917_3081044/20090917_3081044.jpg.html" title="" linkindex="43"><IMG src="http://l.yimg.com/o/xp/afp/20090917/02/2853214996.jpg" /></A></LABEL></TD></TR></TBODY></TABLE><P>(法新社<A title="巴黎" class="ynwsyq yqclass" href="?" id="yui-gen0" linkindex="44"><SPAN>巴黎</SPAN></A>16日電) 科學家今天在歐洲行星科學會議(European Planetary Science Congress)表示,現今有「煉獄行星」特色的金星,可能曾經近似地球的雙胞胎。</P><P> 歐洲偵測太空船送回的資料顯示,儘管金星表面極度炙熱,並被一層危害性極大的大氣覆蓋,金星還是可能一度富含水源。</P><P> 金星是離太陽第二近的行星,體積和存在時間與地球相近,兩者相似特性在上世紀引發科幻小說揣測,認為金星可能為人類提供另一個居所。</P><P> 這些科幻大夢在1960年代幻滅,當時無人探測太空船發現金星表面溫度足以將鉛融化,也沒有任何水的跡象,只有在二氧化碳和硫酸構成的大氣層中含有微量水份。</P><P> 調查人員表示,歐洲太空總署(ESA)太空船「金星特快車號」(Venus Express)仔細掃描這些微量水份,發現可能是大量水分的殘留物,這些水分可能消失在太空中,或被太陽蒸發。</P><P> 上述觀察今天發表於德國波茨坦(Potsdam)的歐洲行星科學會議,揭露金星大氣層從海拔10公里到110公里的水蒸汽存在引人好奇的差異。這些高度遠高於雲層。</P><P> 金星大氣層上層含有同位素氘(deuterium)的「重水」(Heavy Water)與正常水的比例,幾乎是下層兩倍。</P><P> <A title="法國" class="ynwsyq yqclass" href="?" id="yui-gen1" linkindex="45"><SPAN>法國</SPAN></A>LATMOS實驗室的馬克(Emmanuel Marcq)發表新聞稿說:「水蒸汽在金星大氣層<A title="中非" class="ynwsyq yqclass" href="?" id="yui-gen2" linkindex="46"><SPAN>中非</SPAN></A>常稀少,若它現在以液體形式存在,將只是金星地表上數公分的水。」</P><P> 他說:「然而我們相信金星曾有大量的水,並在之後消失在太空中,或被太陽風吹乾。」(譯者:中央社蔡和穎)</P></DIV></DIV></blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;"> </td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/CB4914A6-EB2B-404A-A99D-23CAF0AC5E95/blog/" title="blog or email this clip"><img src="http://content7.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>
New from the makers of Clipmarks:
Amplify.com - Don't just share the news...Amplify it!
Clipmarks
Home
New Clips
Top Clips
Dashboard
Popular Topics
News
Life
Science
Technology
Entertainment
Get Started
Sign Up
Install Clipping Tool
How Clipping Works
Clip-to-Blog™
ClipSearch
Tools and Resources
FAQ
ClipWeek
Top Clippers
Top Tags
Site Map
About Clipmarks
About Us
Contact
Copyright
Privacy
EULA
OK