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Scientists Have Spotted the Signs of Flowing Water On Mars

New submitter universe520 writes: Using neat imaging technology that allows them to determine the chemical compound of a substance by looking at the light reflected from it, scientists have spotted the traces of flowing water on Mars. By looking at the dark streaks on some photos of Mars, Lujendra Ojha from Georgia Tech has found compounds that are made in liquid water—meaning that water may be trickling down those streaks when the climate is just right. From the linked Economist piece: Details remain to be worked out, including where the water in question originates. Possibly, it derives from subsurface ice. Or it might condense out of Mars’s thin, dry atmosphere. Wherever it does come from, though, the amounts in question are modest in the extreme. But even modest amounts of water are intriguing to biologists. If Martians evolved during their planet’s earlier, wetter phase, the continued presence of water means it is just about possible that a few especially hardy types have survived until the present day—clinging on in dwindling pockets of dampness in the way that some “extremophile” bacteria on Earth are able to live in cold, salty and arid environments.

20 of 260 comments (clear)

  1. Let's face it... by Anonymous Coward · · Score: 4, Interesting

    Life on Mars has already been discovered by somebody, but they're rolling out this news slowly so people don't flip their shit.

    1. Re:Let's face it... by Anonymous Coward · · Score: 3, Insightful

      I don't get it. Since when do the fundies take a position on extraterrestrial life? I've never heard that one before.

    2. Re:Let's face it... by Maritz · · Score: 5, Interesting

      Considering even if there is life on Mars it's going to be a long long way from Little Green Men I don't see why anyone except creationists would flip their shit. And even then, creationists and cdesignproponentists will ignore it and do the fingers in ears na-na-na thing. So nothing really would change except smart people would redefine their picture of the universe.

      Even at that, considering how much material Earth and Mars have exchanged over billions of years, it wouldn't even really be that amazing for single cell life to be on Mars, especially if it has a common origin with life on Earth. If we proved beyond doubt that it had an independent origin, THAT would be big.

      --
      I do not want your cheap brainburning drugs. They are useless for work. And I am a working man today.
    3. Re:Let's face it... by ShanghaiBill · · Score: 4, Interesting

      Take a look at this article from Answers in Genesis".

      Do you actually know any fundamentalists? They are the people most likely to believe in alien abductions, crop circles, astrology, etc. They don't really care that these beliefs may be incompatible with scripture (which they mostly haven't actually read). Besides, I don't see any incompatibility between the Bible and ETL. God could have created ETL the same time He created life on earth. It would be no more "proof" of evolution than all the other overwhelming evidence that is already ignored by fundamentalists. Some Mormon fundamentalists have an affirmative belief in ETL, and see no incompatibility between that belief and the Bible.

      The discovery of some bacteria on Mars is not going to cause the collapse of religion, and will make no difference at all to most people's beliefs.

    4. Re:Let's face it... by KGIII · · Score: 3, Insightful

      How so? At no point does the Bible state that God only created humans nor does it exclude the idea that he created beings not in his image. I'm no biblical scholar nor a Christian but I don't see where it is incompatible or anything. It doesn't even extend to beyond the Earth so far as I know, except for the heavens which can be defined in a variety of ways. I have read the entire Bible but I didn't really understand all of it so I may be missing something. I should probably read it in a format other than the KJV.

      --
      "So long and thanks for all the fish."
    5. Re:Let's face it... by Jawnn · · Score: 5, Insightful

      For the sake of all that is Holy, don't take those Answers in Genesis wackos as speaking for all Christians. Science and Christianity are compatible.

      Uh, no. They are not. More generally, science and religious dogma are incompatible. One is a rational approach to knowledge and understanding, and the other is a collection of text purporting to be of divine origin and authority. Those two things are pretty much polar opposites. Now, if you want to argue that "scripture" should only be taken as metaphor... yada yada yada, OK. Fine. Please get all your Christian buddies to do so and then we'll talk. Until then, I will, quite accurately, place most of them in the "picks and chooses the 'word of God' to suit their need" group.

    6. Re:Let's face it... by Boronx · · Score: 3, Funny

      Then they will go to heaven.

  2. So... by Anonymous Coward · · Score: 5, Informative

    Using neat imaging technology that allows them to determine the chemical compound of a substance by looking at the light reflected from it

    The author has never heard the term "spectroscopy?"

  3. Re:All the proof we need by ColdWetDog · · Score: 4, Funny

    Cruz/Palin 2016 - Restoring America from the Liberal War against common sense

    Nah.

    Cthulhu / Dagon 2016 - Why vote for the lesser evil?

    --
    Faster! Faster! Faster would be better!
  4. Re:All the proof we need by Beezlebub33 · · Score: 5, Informative

    I would encourage everybody reading the parent post to actually read the article. Just take a look at the image at the top of the article: the overwhelming majority of the planet is heating up, setting all sorts of records, except for one small part of the ocean. And that part of the ocean is getting colder (it appears) because of all the melting fresh water (because the planet is heating up), which is screwing up a major circulation current. And _that_ is their evidence that global warming is a lie: taking a small part of evidence out of context, wilfully mis-interpreting it, and ignoring almost all the rest of the evidence.

    --
    The more people I meet, the better I like my dog.
  5. Re:All the proof we need by doublebackslash · · Score: 3, Informative

    The parent is drawing their own conclusions from the article. Here is a key quote, but please read the whole article. It is actually quite good.

    At this point, it’s time to ask what the heck is going on here. And while there may not yet be any scientific consensus on the matter, at least some scientists suspect that the cooling seen in these maps is no fluke but, rather, part of a process that has been long feared by climate researchers — the slowing of Atlantic Ocean circulation.

    The Atlantic ocean's circulation patterns for that area are driven by density differences. Warm water from further south moves north along the surface and when it gets to Greenland it freezes as sea ice. That process greatly increases the salinity, and therefore density, of the remaining water and so it sinks and circulates south again.
    This loop is critically important for certain favorable climate features of Western Europe.

    If this is in fact what is occurring then this isn't evidence against climate change, it was one of the more extreme predictions OF climate change.

    --
    md5sum /boot/vmlinuz
    d41d8cd98f00b204e9800998ecf8427e /boot/vmlinuz
  6. Re:Not to sound like an ass... by RoccamOccam · · Score: 4, Insightful

    Here's hoping something like Tardigrades evolved on Mars too, if so, they'd probably still be revivable today even after a couple billion years.

    An opposing opinion: http://www.popularmechanics.co...

    "If Mars is equally lifeless, that will make exploring--and later settling--the planet much easier. We can go there and return without this particular worry, and we can introduce Earth life without concerns that we'll damage indigenous creatures. Astronauts won't have to be quarantined, and the environmental impact statement, or its interplanetary equivalent, will be easier to determine. On the other hand, if there is life on Mars, things get a lot tougher."

  7. Hey NASA! Pics or it didn't happen... by furry_wookie · · Score: 4, Insightful

    Pics or it didn't happen...

    Seriously, I wanna SEE some water, not pictures of where we think water used to be, where it was 10 minutes ago and left just before we got there....I wanna see water...real flowing, sparkling, water.

    --
    -- Given enough time and money, Microsoft will eventualy invent UNIX.
  8. Re:Hey NASA! Pics or it didn't happen... by Anonymous Coward · · Score: 3, Funny

    And then, I want to send a lander there to extract it, put it in little plastic bottles and sell it for $1+E08/liter: "Martian water. Sustainably sourced from a planet unspoiled for 4 billion years."

  9. Science and Christianity are NOT compatible by cat_jesus · · Score: 3, Insightful

    The idea that science and Christianity are compatible is a comfortable lie(for some). You would never accept a new vaccine because someone had a vision in a dream and then woke up and wrote down the formula. You would use the scientific method to determine if a vaccine works or not. Religion demands that you take the word of some unknown person having a revelation thousands of years ago as the truth for some pretty important questions. You are forced to not investigate and not question. This is the antithesis of science.

    1. Re:Science and Christianity are NOT compatible by Creedo · · Score: 4, Insightful

      They seek from the Bible inspiration, a cultural identity, etc., but not doctrine.

      Well, I hate to tell you, but the vast majority of Christians would consider you to be a heretic at best. And the same would happen at any given point in the history of Christianity. Your version might be more intellectually palatable, but don't imagine for a moment that it represents a majority.

      --
      All that is necessary for the triumph of good is that evil men do nothing.
  10. Re:All the proof we need by cat_jesus · · Score: 5, Funny

    People who resort to hyperbole are worse than Hitler.

  11. Stars [Re:Let's face it...] by Geoffrey.landis · · Score: 3, Informative

    One anecdote that is related indirectly to the topic is the ignorance of the nature of stars. Someone in my family didn't know that stars are like our sun but much further away. There was no malice or contradiction of beliefs and they took it as a VERY awesome fact, but that sort of gap in knowledge combined with religious fervor can, and does, lead to the outright denial of even the possibility of life elsewhere.

    Indeed.

    The first person to clearly state the hypothesis that stars are other suns like ours, but much farther away, was Giordano Bruno-- who also said that since they're like the sun, they undoubtedly also have planets with life. A pretty far-thinking hypothesis, considering that Copernicus' work saying that the Earth circled the sun (instead of vice versa) was still newly published when he asserted it.

    Of course, he was burned at the stake for it.

    --
    http://www.geoffreylandis.com
  12. Canals!!! by myowntrueself · · Score: 3, Insightful

    So there were canals on mars all this time!

    --
    In the free world the media isn't government run; the government is media run.
  13. Re:All the proof we need by z0idberg · · Score: 3, Insightful

    Basically they are a passenger on the titanic saying "This ship can't be sinking, my end just rose 200 feet!".

    --credit to a meme image I saw a while back:
    http://d.justpo.st/media/image...