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| Star Wars !!!!; Spacey moods | |
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| Tweet Topic Started: May 13 2011, 06:12 AM (1,001 Views) | |
| Darkceus | May 18 2011, 08:27 PM Post #16 |
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Angel
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I found this article. It claims that there is another planet that can sustain life like ours. http://www.cosmosmagazine.com/news/4321/first-habitable-exoplanet-confirmed |
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| labouka | May 19 2011, 02:54 AM Post #17 |
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Ruler of Black Holes
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According to the facts stated in this article, it is confirmed that life can exist outside our Solar System. It's like I said: Give a planet C and H2O and ta-da you have life. If the survival conditions of said life are met, then this is a better thing for us. According to what I read on this article I can say with a lot of hope that Gliese will become, in a couple of years, a new home for the mankind. BTW, thanks for this article Dark. I was really looking for something like this that, to an extend, shows that, after all we are not alone in this universe Edited by labouka, May 19 2011, 02:56 AM.
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| Larads | May 19 2011, 01:08 PM Post #18 |
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Sky Butler
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...yay, so maybe one day :D Life on other planets... I once gave a presentation pursuading and explaining to my physics group why there was the possibility of life on Europa xD ...one thing though, what's to say that life elsewhere needs the same condiitons as us in order to phrive? It has already been proved on this planet that life does not necessarily need sunlight to thrive, despite previous thoughts, so isn't it possible that a specimen may develop that can phrive on conditions lacking oxygen? |
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| Phimi | May 19 2011, 02:05 PM Post #19 |
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Mehz.
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All livings thing need energy from somewhere, and for a 'short' while on earth, life didn't need oxygen, in fact, oxygen was deadly poisonous. But for any kind of sufficiently advanced lifeform (i.e. anything above amoebas), they need to have a greater supply of energy, and the processess that these primordial lifeforms used to get said energy weren't efficent enough, and the raw materials for it soon ran out. A byproduct of these reactions, oxygen, was eventually used to great success in respiration, and allowed surplus energy to be generated, allowing more complex life to evolve. As far as we know, real 'life' needs DNA to replicate itself beyond a single generation. Now DNA is easily broken down to it's constituents (you'll all have heard of sci-fi stories where someone is exposed to radiation and mutates horribly, that's a consequence of the radiation messing up that person's DNA), and so needs specific conditions, e.g. warm temperature, pressure not too high or low, and minimal radiation. Stray even the slightest bit too far out for each one, and life simply couldn't continue. Also, life does need sunlight. Admittedly, things like bats spend all day in caves then come out at night, but their prey needs sunlight. I know there's organisms living deep in caves in highly acidic conditions which would die if a light was shone on them, but sunlight is what keeps the water they live in as a liquid. Light is probably the only thing that life absolutely needs. XD sorry Labouka, you're not the only space-nerd on this forum. Also, I did some number crunching for that exoplanet, and it's surface gravity is 1.75g, so long-term human colonisation is out without some hefty genetic engineering. Edited by Phimi, May 19 2011, 02:12 PM.
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| labouka | May 19 2011, 02:12 PM Post #20 |
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Ruler of Black Holes
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I don't fully understand what "things" prove that life can exist without the usual facts that we grew accustomed to know so I would like you Larrads, if possible, to list some of those things so that I can give a more formal and correct answer. |
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| labouka | May 19 2011, 02:18 PM Post #21 |
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Ruler of Black Holes
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What fellow comrade and deeply knowledgable consort Phimi said. :D No need to be sorry, Phimi...I really like it when I find people who share my passion. :D :D :D |
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| Phimi | May 19 2011, 02:36 PM Post #22 |
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Mehz.
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Ah, that's good. I'll let you get the next question. |
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| Darkceus | May 19 2011, 06:26 PM Post #23 |
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Angel
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No problem. ^_^ I am fascinated by space as well, but I really want to find out more about our universe and if there could be other life on other planets. I really want to know what else could be in our other planets ie. Jupiter, Saturn, etc. and what is underneath those thunder storms. |
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| Phimi | May 20 2011, 03:21 PM Post #24 |
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Mehz.
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There's not much to get exicted about under the Jovian clouds, except the exact same elements, just a little bit dense. Probably the most intriguing part is when you get to a certain depth, hydrogen exacts in a semi-liquid metallic state, but i doubt it's anywhere near as cool as you no doubt are imagining it. We can get a pretty good idea what is inside the gas planets by insepcting the thermal radiation given out by their cores. As far as we can tell, Jupiter has an atmosphere of 89% hydrogen, helium 10% and stuff like ammonia and methane 1%, with an iron silicate (just another kind of rock) core. Saturn is much the same as Jupiter, but with 94% hydrogen, 6% helium atmosphere, and also has a similar core. If you were expecting life, sorry to disappoint, but there is none. |
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| labouka | May 20 2011, 03:41 PM Post #25 |
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Ruler of Black Holes
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Basicaly, life can't exist at all on those planets because they are not planets in the first place. All those materials, that Phimi said, are in actuallity the main components that comprise the "fuel" that all stars need to produce energy. But in Jupiter's and Saturn's case (and all subsequent gas giants) their..."fuse" was not lit to start all the necessary chained reactions that create all existing stars as we know them. They are Suns that, basicaly, failed to burst. |
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| Phimi | May 20 2011, 04:08 PM Post #26 |
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Mehz.
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Such failed stars are called Brown Dwarves, however, even Jupiter doesn't have the mass to be officially designated as one. |
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| labouka | May 21 2011, 02:12 AM Post #27 |
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Ruler of Black Holes
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True. Because of that many jokingly refer to Jupiter as "the 'failed to ignite his fuse' gas-giant". My physics teacher once called it like that... :P |
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| labouka | May 23 2011, 07:46 AM Post #28 |
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Ruler of Black Holes
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Alright, after a long anticipation and watching The Core for a couple of dozen times I builted up enough mood to start discussing my, probably, most favourite subjects in astronomy: The amazing effects that take place when a star is at the sunset of it's life... and last but not least... The marvelous, mysterious, and destructive... Black Holes... Feel free to post any question regarding those two, along with any other question regarding space in general. :D I am eagerly waiting to |
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| labouka | May 25 2011, 04:50 PM Post #29 |
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Ruler of Black Holes
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Any questions out there ? Limited-time answers to any questions regarding Black Holes and dying Stars. Make haste to catch this offer. While we are still in the mood ! ... Do I sound really desperate to get to talk with you guys...? ... hello... someone... ANYONE ??? I feel so lonely in this dark cruel world... :unsure: :unsure: :unsure: ... ... ... ... ... ... HAA !!! GOTCHA !!! Don't worry about it guys. For a strange reason my twisted mind Joking aside, I don't mind at all. You got your own lives, joys and problems. I respect that. I'm just worried that my the urge will leave me and I will be proven false to my above statements. I don't want to be false in any promises I make, even the small-scale ones. Then again I might just be imagining things, yet again, and make all that fuss for no apparent reason at all (truth is, I can be highly overreactive when my stress takes the best of me). No offence pertained to anyone and surely no stress added for such matters. Take your time guys cause after all... It's our liiife, and it's now or never... We ain't gonna live foreveeer... We just wanna live while we're aliiiive... It's.Our.Life... (I know...it just sounds terrible when you sing it in plurals...I understand your feelings :P :P :P ) |
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| Phantom | Jun 7 2011, 03:44 PM Post #30 |
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Self-proclaimed Sandslash
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*thinks of all the songs she could sing with plurals, lol...* Anyway, spacey topic, Suzu would love this. She's obsessed with stars, though. And other stuff. I just like what I studied in fifth grade - Black Holes! Either of you care to tell me anything you know about them? |
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