What is Digg?64 Comments
- Protuhj, on 07/16/2008, -4/+59Dugg for title with superb innuendo.
- alperea, on 07/17/2008, -3/+35Mars was wet because of Uranus
- ShadyG, on 07/17/2008, -1/+22Sometimes I feel like I'm the only one who is continually disappointed in hearing how interesting our solar system used to be.
- gcnaddict, on 07/17/2008, -3/+24I'm going to skip the opportunity to dig into the innuendo and instead ask: what's our plan to get her wet again?
- UtahApocalyse, on 07/17/2008, -0/+15rub it gently
- bwjacket, on 07/17/2008, -1/+14Things were different then, back when Mars had water, Pluto was a planet and Earth was a lava scorched ball of ash. What a party.
- inactive, on 07/17/2008, -4/+15That's what she said.
- crerwin, on 07/17/2008, -4/+15All wet. Mmmm, that's hot.
- tcpip4lyfe, on 07/17/2008, -0/+9I enjoy Uranus as a whole.
- Dozernotz, on 07/17/2008, -0/+9No I'm disappointed too. We were all so close seconds before the big bang, now look at us.
- inactive, on 07/17/2008, -0/+7Obviously, you've never been to Uranus. You never go to Uranus without plenty of lube.
- FeloniusMonkey, on 07/17/2008, -0/+6Dunno. What would Jesus say?
- covertbadger, on 07/17/2008, -1/+7It'd be long gone. It's generally thought that a mere 10,000 years would be enough to erase most traces of the human race, bar a few exceptional structures like Mt Rushmore. A million years would put paid to us for sure. 3.7 BILLION years? Literally hundreds of advanced civilisations could have sprung up and vanished completely in that time.
- cutright, on 07/17/2008, -0/+6With a fairly high degree of confidence... Yes.
- inactive, on 07/17/2008, -0/+5You seem offended , did it remind you of your mom?
- zephyear, on 07/17/2008, -0/+5yes
- Aroundtheworls, on 07/17/2008, -0/+4I wonder if there was a intelligent civilization on Mars 3.7 billion years ago with cities, highways and other features would any of it exist today or would it all have turned to dust?
- Uiaccsk, on 07/17/2008, -0/+3I think that superb bit of humor might be lost on a lot of people. Well done, sir.
- nodong, on 07/17/2008, -2/+5It was wet until the Martians began driving Hummers.
- boejangles, on 07/17/2008, -0/+2Mars was wet in The Milky Way?
- tman84, on 07/17/2008, -1/+3It looks like it was all a natural occurrence, so I refuse to believe any of it, until there is proof that humans were there and ***** it all up.
- cutright, on 07/18/2008, -0/+1So you won't even acknowledge the response?
- ASSASSYN360, on 07/18/2008, -0/+1I hope our future successors can make mars wet unlike us. We have yet to take significant steps towards helping mars get wet. If one day we can make mars wet I will be so happy. I believe future space voyages to mars will assist in making it...wet.
- caled, on 07/17/2008, -1/+2Apologies for bursting your crazy theory, but all evidence seems to suggest that the Sun is actually increasing in intensity has been doing so for quite a while.
The reason Mars dried out, as it were, is because it just ain't big enough for a decent atmosphere due to its teeny weeny liquid metal core, and there are many recorded fluctuations in the total flux of solar energy to the Earth, although I shall just point you on your way if you wish to learn more about this, so go and google Milankovic cycles, or just follow this link to the wikipedia article:
http://en.wikipedia.org/wiki/Sun#Life_cycle
edit: oh, and before I forget, the fluctuations in the solar flux reaching the earth isn't sufficient to account for the increases in temperatures observed, so I'm afraid thats mostly anthropogenic in origin. Oops. - cran, on 07/18/2008, -0/+1Evidence, not proof.
- DestroyFascism, on 07/17/2008, -0/+1Yep,,but who knows when and from what...
- cutright, on 07/17/2008, -0/+1I presume you're not arguing against the evidence indicating that there was in fact flowing water on Mars at some point. Given that, when was it there? We know it couldn't sustain flowing water now due to it's lack of a significant atmosphere. This blurb below sums up the evidence explaining the estimate for when Mars had a significant atmosphere.... which places it "shortly" after its formation, and really not long after the birth of our sun 4.57 billions years ago.
"Over geological time, Mars has lost much of its atmosphere to space. The losses are due to its small size, and hence its lack of gravity to retain its atmosphere. Noble gases, such as argon and xenon, act as tracers of the history of the atmosphere. Since they are chemically inert, the original inventory stays in the atmosphere rather than reacting with the surface. Any loss of atmosphere results in a loss of noble gases. Since many of these gases have stable isotopes of different masses, measuring the ratio of the lighter isotope to the heavier isotope reveals something about the loss of the atmosphere. If the ratio is enriched in heavy isotopes compared to the original inventory, then a significant part of the atmosphere has been lost. Scientists measure the original inventory from meteorite fragments indicating the conditions in the solar system when Mars was formed, and they measure the current inventory with spacecrafts like Viking and Pathfinder on the surface of the planet. The result: Mars has lost a significant amount of atmosphere in the last 3.8 billion years." - DestroyFascism, on 07/17/2008, -1/+2It has a ring too...
- FeloniusMonkey, on 07/17/2008, -0/+112-year olds, man.
- markperia, on 07/17/2008, -1/+2ohhh... dirty, dirty, Mars!
- Iztikeit, on 07/17/2008, -0/+1I'm disappointed at how uninteresting everything else is compared to Earth. We have 4 billion years of evolution going strong right at our doorsteps, how can anything be more wondrous?
- cutright, on 07/17/2008, -0/+1Are you concerned that billions of years is ever a valid estimate or that it's a valid estimate in this case?
- takeo1775, on 07/17/2008, -0/+1If mars was wet once, there could have been some form of life. Then if the terraforming was slow enough any life might have adapted to survive in the harsh environment, like extremophile bacteria on earth.
- Boogalou007, on 07/17/2008, -0/+1Is this a Bushism? I don't know whether to digg or bury...
- DestroyFascism, on 07/17/2008, -0/+1Send it to the Republican party, they could test it for us and see how toxic it is...
- fcrow, on 07/17/2008, -1/+1Billions of years? Damn I need me some of that reincarnation drug, don't wanna miss out on all the fun ahead!
- Dozernotz, on 07/17/2008, -0/+0Repetition is truth.
- inactive, on 07/17/2008, -2/+2It most likely dried up because people were driving high emissions vehicles, burning resources for power, and deforesting land to build new homes.
- brook011, on 07/17/2008, -1/+1I've always figured the way this was plausible was if the sun has cooled over time, and was at one point warm enough to put Mars into that thin sustainable zone where it doesn't fry or freeze ya. I know there has to be some sort of theory built around this.
- bobdobolena, on 07/17/2008, -1/+0For some reason I read "Highlands of Mars" and thought to myself, "There can be only one"
- sgvprelude, on 07/17/2008, -1/+0So was my wife before we got married.
- newwildlife, on 07/17/2008, -1/+1Nope, just that everytime i see this character commenting its always some worthless, immature spewing of words.
- steveoco, on 07/17/2008, -3/+3Bloody hell, Digg just repeats itself. This is another dupe story from earlier today. Maybe every 12 hours while the other half of the world is asleep people post things without looking back 12 hours.
http://digg.com/space/Scientists_Mars_Was_Once_Cov ... Front page +791 diggs - Dozernotz, on 07/17/2008, -1/+0I hate when you make fun of my teeny weeny core.
- Rudegar, on 07/17/2008, -3/+2planetary menopause made mars a dried out old prune
- NoCt1, on 07/17/2008, -2/+1I dont know this and dont claim to be an astrophysicist at all. but has anyone thought about the sun becomeing more potent in the release of rays? The earth is warmingMars was all wet Could the sun just be releasing more powerful rays that would cause a lot of everything they say? I mean It could be like the peak of the earth was the past billion or so years. and since then the sahara was once a wetland. and now a desert and such. I dont know could just be a crazy theory.
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