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Johno
Username: Johno

Registered: 4-2006
Posted on Tuesday, December 05, 2006 - 9:06 pm:   

NASA has scheduled a news conference for 1pm EST, Wednesday, December 6 for to announce what they describe as a "Significant find on mars."
The conference is in reference to new science results from the Mars Global Surveyor spacecraft mission.
It's been orbiting Mars for 10 years and has in that time detected a shrinking of carbon dioxide ice suggesting a climate change in progress. It has also found gullies that give evidence of a presence of liquid water on Mars in modern times. It also detected a remenent of a magnetic field that shows that Mars once had a magnetic field similar to earth.
MGS lost contact with Earth on November 2 and on November 5 it sent one last weak signal and hasn't been heard from since. Two weeks ago NASA announced the orbiter was dead.
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Ed_neil
Username: Ed_neil

Registered: 5-2006
Posted on Tuesday, December 05, 2006 - 9:24 pm:   

The Space Brothers got it!!! hahahaha
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Johno
Username: Johno

Registered: 4-2006
Posted on Wednesday, December 06, 2006 - 6:36 pm:   

The pictures released today suggest liquid water on the surface of Mars as recently as within five years. Recent photographs compared to an area that was photographed five years ago show what is being interpreted as gullies on the side of a crater that were caused by water runoff that was not there in the first series of photographs.
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Vallejo_dave
Username: Vallejo_dave

Registered: 4-2006
Posted on Wednesday, December 06, 2006 - 7:38 pm:   

I didn't know where to post this, but this seems as good a place as any:

http://www.msnbc.msn.com/id/16070170/
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Hawk
Username: Hawk

Registered: 5-2006
Posted on Tuesday, December 12, 2006 - 1:02 am:   

Question: How many of you think that Mars was once in the same positional orbit around the Sun as Earth is today and had life on it?
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Ed_neil
Username: Ed_neil

Registered: 5-2006
Posted on Tuesday, December 12, 2006 - 1:05 am:   

In order for it to move to it's present orbit, something big would need to collide with it and knock it out of orbit. In that case, there wouldn't be much left of Mars today... in other words, I think it's always been in or near it's present orbit.
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Etphoto
Username: Etphoto

Registered: 6-2006
Posted on Tuesday, December 12, 2006 - 6:57 am:   

I agree Ed and there would be visible damage to the planet. Life could be something other than what we know. In order words, there might have been species around that could live in Mar's climinate. Nothing on Earth could but that doesn't mean other life forms couldn't have existed.

ET
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Warren
Username: Warren

Registered: 4-2006
Posted on Tuesday, December 12, 2006 - 8:57 am:   

Years ago I heard that the only advanced Earth life form (other than perhaps an amoebe) that could live on Mars was the scorpion, apparently because it would be immune to all that solar radiation hitting the surface. Of course, it would have to eat something.
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Hawk
Username: Hawk

Registered: 5-2006
Posted on Tuesday, December 12, 2006 - 5:00 pm:   

According to Steven Hawkins the Universe is ever expanding. In short, the Planets are moving outward. So, perhaps this could hold true for our own solar system and Mars was once closer to the Sun than it is today.
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Oklahoma_mike
Username: Oklahoma_mike

Registered: 5-2006
Posted on Tuesday, December 12, 2006 - 10:47 pm:   

The expanding universe is really only noticeable on the very largest scale. The planets seem to have shifted in their orbits very little over millions of years. However, Mars does seem to have had a denser atmosphere at one time and been warmer, perhaps the sun was slightly brighter and warmer than now, just enough to melt more of the ice at the martial polar caps. The rovers on Mars have found convincing evidence that liquid water was once much more common on Mars than it might be today, so the possibility of some type of life existing now or in the past certainly exists. I do not think there is evidence of any intelligent civilizations, unfortunately.
Every 2 years Mars gets closer to Earth and I havae seen the ice caps and dust storms on the surface fairly easily. Mars is a fascinating planet.

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