Wednesday, September 19, 2007

Saturn's Titan A Peek into Earth Early History

Saturn,the second-largest planet in our solar system,is well known for its dramatic ring system.It is the farthest planet anyone can see with the bare oculus in Earth's nighttime sky.

In 1997,the Cassini-Huygens missionary post began its seven-year voyage to Saturn.The mission's aim was to garner as much information as it could about this gas giant and its ambiance as well as its many moons,especially Titan,the biggest moon in our solar doing this,the men of science trust to derive more than information about how planet form,the beginnings of organic substance in our solar system,and perhaps even about the early old age of Earth.

Cassini-Huygens entered Saturn's celestial orbit in july 2004 and began sending emages and information back to earth.On December 24,2004,the cassini satellite ejected the Christiaan Christiaan Huygens probe,which then began a 20-day coast toward Titan.In January 2005,Huygens finally entered Titan's ambiance and,using highly sophisticated instruments,began collecting a nimiety of information about the moon's ambiance and its terrain.

Why Titan?

Cosidering that Saturn have at least 35 known moons,why the involvement in Colossus in particular? Atmosphere,not size,was the paramount consideration oin the scientist'choice to analyze Colossus first.

Titan is the lone mooon in the solar system with its ain atmosphere.Scientist believe this thick atmosphere(thicker even than Earth's)resembles Earth's ain ambiance 3.8 billion old age ago before aboriginal life began.Thus,studying Colossus may assist addition our apprehension of Earth's early history and offering us all a peep into our past.

What Christiaan Christiaan Huygens Found

When it plunged into Titan's thick orange haze,the information and mental images Huygens direct back revealed that...

1.)There are no primodial solid gases on Titan.If there had been,this would have got meant that Titan's ambiance did not change at all from the clip it was defined up to today.But this is not the case.The N on Colossus formed from ammonia,which is believed to be the same manner that N formed on Earth.

2.)Titan's ambiance dwells primarily of methane and nitrogen.Methane,the 2nd most abundant gas on Titan,control's Titan's weather forecasting in the same manner that H2O controls Earth's.The liquid methane on Titan's surface stuff evaporates into the at mosphere,forms clouds,and rainfalls back down to finish the cycle.In other words,it rainfalls methane on Titan.Where makes titaniums methane come up from?Scientist believe that Colossus is geologically active and incorporates a huge resistance reservoir of C from which methane if formed.

3.)Titan's ambiance have assorted composite hydrocarbons(organic chemical compound like methane that incorporate C and hydrogen).Scientist believe that chemical reactions by hydrocarbons gave rise to life on Earth.This is why they see Titan's ambiance as a clip machine to the early years of Earth.Spectrometer data,however,provide no indicant of life on Titan.

Tobias Owen,an uranologist from the University of Hawaii,said that on the whole,Titan looks to be like an early World that failde to develop further,because it lacked the ingredients indispensable to life:light,heat,and water.Owen said,"Because of its immense distance from the Sun,Titan's development was frozen at a very early stage-where it will stay until the Sun develops into reddish giant star and runs it."

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