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The puzzle of why the northern and southern hemispheres of Mars look so different may now have been solved.
Mars' crust is thicker in the southern hemisphere, and magnetic anomalies are found in the south but not the north.
New studies in Nature magazine suggest that a massive space rock smashing into the planet could have created an abrupt disparity between the two halves.
The new research suggests Mars bears the largest impact scar known anywhere in the Solar System
Originally posted by spec_ops_wannabe
What I am interested in is the technique they used to determine the thickness of Mars's crust. Anyone know what it is/was?
No, it says:
This is a pretty interesting article. Says the asteroid that struck it could have been the size of Earth's moon.
These conditions indicate a space rock about one-half to two-thirds the size of Earth's Moon, striking the Red Planet at an angle of 30 to 60 degrees. This would have produced an elliptical crater.
Originally posted by spec_ops_wannabe
What I am interested in is the technique they used to determine the thickness of Mars's crust. Anyone know what it is/was?
Not always, in fact, total destruction is very difficult to achieve.
Originally posted by FreeRadicull
Now I'm no scientist but, when smashing occurs there is usually destruction that precludes any other explanation.
They admit it, that is why they use words like "probably", "we think", etc., and that is why it is called a theory and not a fact, these are not the type of people who post videos in YouTube.
Why don't they (science community)just admit they don't know instead of theorizing nonsense.
Only to people that do not understand a thing of what is being said.
These people are laughable.
Originally posted by FreeRadicull
reply to post by d11_m_na_c05
So I guess there's not to much floating out in space that is irregularily shaped, like say a Comet or Astroid. Also since you brought up the vacuum in space, where did our atmosphere, perfect for our life, come from. Was it caused by more "collisions", what about our Sun, more collisions and how about the angle of the earth which is just right for life, let me guess another collision. And how about life here on earth, what are the odds of every living creature evolving a male and female fully matured because babies wouldn't survive, all at the same time, more collisions I venture etc. etc....
Also what spherical fire are you speaking of in the vacuum of space? I have alot more "common sense" questions for the scientic community to answer.
So I guess there's not to much floating out in space that is irregularily shaped, like say a Comet or Astroid.
Also since you brought up the vacuum in space, where did our atmosphere, perfect for our life, come from.
Was it caused by more "collisions", what about our Sun, more collisions and how about the angle of the earth which is just right for life, let me guess another collision.
And how about life here on earth, what are the odds of every living creature evolving a male and female fully matured because babies wouldn't survive, all at the same time, more collisions I venture etc. etc...
Also what spherical fire are you speaking of in the vacuum of space?
"Pale Blue Dot" - Earth from 4 billion miles away snapped by Voyager in '91 [NASA/JPL space.com]