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Maps Show Mars Was Once More Like Earth

vrioux writes "NASA scientists have discovered additional evidence that Mars once underwent plate tectonics, slow movement of the planet's crust, like the present-day Earth. A new map of Mars' magnetic field made by the Mars Global Surveyor spacecraft reveals a world whose history was shaped by great crustal plates being pulled apart or smashed together. ."

13 of 223 comments (clear)

  1. Comment removed by account_deleted · · Score: 4, Funny

    Comment removed based on user account deletion

  2. Re:So what happened? by kyle90 · · Score: 2, Funny

    Probably the wars they fought over oil. That's why we won't find any there now. Come to think of it, someone should probably tell Bush that. I'm convinced that he's only pushing his space exploration mandate because he thinks there's WMDs on the moon and trillions of barrels of oil on Mars. (for those of you who are going to mod me down as a troll [and I know you're there], it's a JOKE. get a sense of HUMOUR)

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    Real_men_don't_need_spacebars.
  3. Based on the site photos... by Pomme+de+Terre! · · Score: 5, Funny

    ... it also appears to have been ruled by giant purple spiders.

  4. Mars-Earth comparison offends Martians deeply by digitaldc · · Score: 4, Funny

    Martians are NOT amused by this comparison. They find it degrading, humiliating and defamatory.

    "Earthlings have never come close to inventing a Illudium PU-36 Explosive Space Modulator, nor can the 19.7 km height of Mt. Everest even touch Olympus Mons with an altitude of 27 km!", says Mars local, Marvin.

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    He who knows best knows how little he knows. - Thomas Jefferson
  5. Re:Aliens? by eln · · Score: 4, Funny

    I think it's far more likely we came from Golgafrincham. How else could we explain our penchant for sanitizing telephones?

  6. .bak by MaXiMiUS · · Score: 2, Funny

    This is a perfect example of why you should always back up your work, too bad it would take up like, 65535TB of space to back up our entire planet.

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    It's never just a game when you're winning. - George Carlin
  7. Mars' orbit once crossed Earth's? by Anonymous Coward · · Score: 5, Funny

    I once read an interesting story about some astonomer who believed that a long time ago Mars' orbit once was highly eliptical and crossed Earth's orbit and there was a near collision. Mars used to have oceans that alternatively froze solid and melted & boiled during it's highly elliptical orbit around the Sun until a very close encounter with Earth, where the two planets' gravities caused them to do a quick dance around each other during the near-collision, slinging off most of Mars' water which then was captured by the Earth's gravity and eventually fell into our own oceans, then Mars itself got slung outward towards it's current orbit where it collided with another small planetoid, the collision resulting in the formation of the asteroid belt and Mars' current stable orbit that is vastly less eliptical that before, but still not "almost circular" like Earth's orbit..

  8. Re:Animation? by Anonymous Coward · · Score: 2, Funny

    Plate tectonics takes millions of years. Be patient.

  9. Re:Aliens? by Anonymous Coward · · Score: 1, Funny

    Seeing as how we do not behave exactly like every other animal, would there be a way that we could have come from Mars?

    Yes, but only men.

  10. Re:Aliens? by ettlz · · Score: 4, Funny
    Perhaps Adam and Eve were real and the first couple to come.

    Nah. Eve was faking it.

  11. Re:Liquid Cores by Anonymous Coward · · Score: 1, Funny

    Ummm radioactive decay = molton core? I don't think so. There's too little of that on our planet.
    The reason we have a molton core while a planet like mars doesn't is gravity. The pressure created by gravity produces heat = molton core. Mars is a smaller planet with a lower mass = less pressure = less heat = small core.

  12. "just checking" by digitaldc · · Score: 2, Funny

    my error, I am only humanoid

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    He who knows best knows how little he knows. - Thomas Jefferson
  13. Version 1 by LaughingCoder · · Score: 4, Funny

    Hmmm, maybe Mars was Earth version 1. Then the designer addressed the defects and came out with version 2.

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    The more you regulate a company, the worse its products become.