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Caves on Mars?

Posted by CowboyNeal on Sat Mar 17, 2007 09:11 AM
from the little-green-cavemen dept.
Mars Space Science
RockDoctor writes "The BBC is reporting that the photo-surveying of Mars has revealed seven suspected cave entrances in the Arsia Mons volcanic area. This has been hinted at before — long sinuous channels in the same region have been interpreted as collapsed 'lava tube' caves — but the scale of the suggested entrances (sheer drops of 80 to 130m from the surrounding surface) makes my troglodytic hands twitch for my abseiling gear."
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  • Bin Laden? (Score:5, Funny)

    by Gothmolly (148874) on Saturday March 17 2007, @09:13AM (#18385555)
    Maybe THATS where he's been hiding!

  • Ob. Futurama (Score:4, Funny)

    by Anonymous Coward on Saturday March 17 2007, @09:13AM (#18385561)
    Zapp: Behold...the Great Stone Face of Mars. The only known entrance to the Martian reservation.
    Leela: What about the Great Stone Ass of Mars?
    Zapp: Well, yeah, but it's way over the other side of the planet.

  • news? (Score:4, Interesting)

    by wileyAU (889251) on Saturday March 17 2007, @09:20AM (#18385599) Homepage
    Is this really news? To be completely honest, it had never occurred to me that there wouldn't be caves on Mars.

    • Re:news? (Score:5, Interesting)

      by onion2k (203094) on Saturday March 17 2007, @09:31AM (#18385671) Homepage
      It depends on the caves really. Fracture caves or lava tubes would certainly be expected because they're formed by volcanic and tectonic movements. If Mars didn't have that then something very odd would be going on. Solutional cave formations are less of a certainty though. These are the sorts of caves formed by water absorbing CO2 during rainfall, turning to carbonic acid, and dissolving certain sorts of rock. For them to exist you need both water and CO2 obviously, and specific mineral deposits to desolve. Their existence could tell us more about the chemical makeup of the martian surface.

      Plus, caves would be a likely place for microbes to continue to thrive. Caves on Earth of full of life.
      • Ooooooh!

        Giant Martian Cave Spiders....

        STB

      • Re: (Score:3, Informative)

        by Diamonddavej (851495)
        Caves can form in rocks other then limestone, such as gypsum - CaSO4.6H2O. In this case water simply dissolves the gypsum, which is slightly soluble in water irrespective of CO2 content. Gypsum is common evaporite mineral on Mars and can form pure deposits e.g. Pollack Crater has gypsum on its floor, it looks like Karst to me.
      • Actually, no tectonic movements. That's how Olympus got so big.

    • Re:news? (Score:5, Insightful)

      by rmadmin (532701) <rmalek AT homecode DOT org> on Saturday March 17 2007, @09:32AM (#18385681) Homepage
      To some of us, it is news. To be completely honest, it had never occurred to me that there would be caves on Mars.

    • Re: (Score:3, Funny)

      by Anonymous Coward
      Yeah, it's no big deal... I've been there and there not all that great... I only saw a couple of paintings and they that aren't all that good...

    • Re:news? (Score:5, Interesting)

      by phrostie (121428) on Saturday March 17 2007, @10:20AM (#18385965)
      although water formed caves would be exciting from a geological standpoint, i like the lava tubes theory.
      a lava tube would have the possibility of being sealed and an atificial atmosphere created for habitation.
      It's be safer than an inflatable structure on the surface.
  • Who here knew rock-climbers were nerds?
    • >Who here knew rock-climbers were nerds?

      We are up there wiht cyclists as gadget freaks, that's for sure.
  • ... the next Geico auto insurance ad.

    Mars Rover II -- so easy, even a caveman can do it.

  • Here's What They'll Find Inside... (Score:4, Funny)

    by cybrpnk2 (579066) on Saturday March 17 2007, @09:49AM (#18385791) Homepage
    OF COURSE there's caves on the Red Planet. Doesn't anybody read Chapter 8 of The Warlord of Mars [cmu.edu] anymore?.
    • I love how they page says "This page is an experiment; if I am succesful, it should take advantage of Netscape 2.0's advanced features without breaking other browsers."
    • Then, turning about the corner of a wall-like outcropping of granite, we came upon a smooth area of two or three acres before the base of the towering pile of ice and rock that had baffled us for days, and before us beheld the dark and cavernous mouth of a cave. From this repelling portal the horrid stench was emanating, and as Thuvan Dihn espied the place he halted with an exclamation of profound astonishment. "By all my ancestors!" he ejaculated. "That I should have lived to witness the reality of the f

  • The actual article's URL (Score:5, Informative)

    by simonbp (412489) on Saturday March 17 2007, @10:13AM (#18385919) Homepage
    Here's the actual article's URL; the also had some supporting papers at LPSC that show up at ADS...

    http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bi bcode=2007LPI....38.1371C&db_key=AST&data_type=HTM L&format=&high=44e3b245f913347 [harvard.edu]

    Simon ;)

    • Re: (Score:3, Interesting)

      by ColdWetDog (752185)
      Thank you. I wondered why an article on "caves" would not have anything resembling a graphic, especially since they were discovered by photographic mapping. But looking at the article explains it. They look like nondescript bubbles and the theory that they represent a cave like structure comes from the thermal spectrum of the objects. Not much to see here...

      And why are these "caves" all named after women? No, let's not go there....

  • Spacemen become Cavemen (Score:3, Interesting)

    by Anonymous Coward on Saturday March 17 2007, @10:17AM (#18385945)
    FTA:
    The authors say that the possible discovery of caves on the Red Planet is significant.

    The caves may be the only natural structures capable of protecting primitive life forms from micrometeoroids, UV radiation, solar flares and high energy particles that bombard the planet's surface.

    Like maybe Earthlings?
    • Yeah, that's been speculated for a while. But I say, "'Primitive', hell!" How many other people are dying for a good "Aliens-type" caves of Mars movie using current science as the backdrop?
  • Didn't anybody see this movie. It predicted caves on Mars a long time ago. See here -- http://www.imdb.com/title/tt0058530/ [imdb.com]
  • From Life On Mars:

    Oh man, look at those cavemen go
    It's the freakiest show
    • From Life On Mars:

      "Y'know, back in Hyde, we'd wait till we actually had evidence against a Martian before we went stomping in and turning his cave upside down..."

      • Re: (Score:2)

        by ettlz (639203)
        Is that not from Life on Mars? As in, "Don't move, you're surrounded by three-armed, web-footed bastards?"

  • Alien base (Score:3, Insightful)

    by ms1234 (211056) on Saturday March 17 2007, @11:20AM (#18386397)
    Well, the sectoids have to live somewhere don't they?
  • Caves can be dangerous [yavin4.com].

    • Re: (Score:3, Interesting)

      by Tablizer (95088)
      Caves can be dangerous [link].

      I almost clicked, and then realized this topic may be a perfect setup phrase for a goatse trick. I don't volunteer to check it.
             

      • Re: (Score:2)

        by o'reor (581921)

        I don't volunteer to check it.
        I did it for you. It's a little reference to Star Wars' "The Empire Strikes Back", perfectly safe for work.
  • And inside the cave is a crying alien.
  • Those are the exit vents for the Martian atmosphere generator.
  • In a related story, researchers are trying to determine the significance of what appears to be the letters "A.S." scratched onto one of the cave walls.

  • Here is the original article (Score:5, Informative)

    by mbone (558574) on Saturday March 17 2007, @04:16PM (#18389277)
    An extended abstract from the Lunar Planetary Science Conference [usra.edu] :

    http://www.lpi.usra.edu/meetings/lpsc2007/pdf/1371 .pdf [usra.edu]
  • It is dark. You are likely to be eaten by a grue.
  • Coming next: NASA reveals pictures of 3-meter tall, four-armed green Martians riding thoats out of the caves....

    Yeah, I know, it's White Martians down at the south pole....

          mark "
    • Mars has a decent atmosphere. Nothing compared to Venus or Earth, but many surveyor mission ideas dealt with light weight, flying craft to do reconnaissance. Other ideas include balloon craft to circle the surface and image, which would also require atmosphere.
      • IIRC, the atmosphere is so thin that by the time you were going fast enough to get off the ground you wouldn't be able to actually maneuver.
    • Mars has a lower gravity; but no atmosphere, so No planes, no choppers, ... only rockets will keep you up.

      Mars does indeed have an atmosphere, albiet a thin one. So planes designed for Mars can actually fly: http://www.x-plane.com/mars.html [x-plane.com]

    • Re:Question for the Space Anthropologists (Score:5, Funny)

      by Walt Dismal (534799) on Saturday March 17 2007, @11:17AM (#18386359)
      Ask Aunt Anthro

      Dear Aunt Anthro, are there cave-martians?

      Sincerely, Timmy in Ohio (age 8)

      Dear Timmy;

      I want to encourage your interest in science! Yes, there are cave-martians. They have huge fangs and many clawed tentacles. They drool stinky green ichor and crawl like nothing you've ever seen before. They are known for hiding in dark closets and under beds. Also, they have flying saucers and know where Ohio is.

    • Re: (Score:3, Funny)

      by SharpFang (651121)
      Oh well, I'd say it's quite obvious. If they took a rock of martian soil and put it under a microscope they'd read: //reserved for future use

    • Re: (Score:2)

      by o'reor (581921)
      Yup. Talking of cavern entrances in your Arsia gets pretty damn close to that kind of joke, though...

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