Bohemian Waltz said:
The magnetic field is easy if we had the aforementioned requirement met. And if that is met we would *Need* singularity control (only feasible way to manipulate time space) Which, could simulate a gravitational field.
54 potential life-sustaining planets
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The magnetic field is easy if we had the aforementioned requirement met. And if that is met we would *Need* singularity control (only feasible way to manipulate time space) Which, could simulate a gravitational field.
If the physical variables are aren't correct anywhere, then life IS no where.crudus said:
Earth has everything right. If there's another planet with similar physical characteristics, it won't have life. It NEEDS everything Earth has. The probability of this? Beyond minimal.
Stephen Hawking is a great physicist and I have a great deal of respect for the man, but I don't set any value in his claim that life probably does exist elsewhere in the universe. From where I'm sitting, it seems a great deal more probable that there is no more life in the universe.
All I can find is a possible bacterial life on Europa, Jupiter's moon. I can find no mention of bloaters (or at least google can't).Trolldor said:
True, they think that in a couple hundred million years, Europa may be able to sustain tiny fish, its based largely on assumption and theory.
While this may, I must admit, prove that I was wrong, it brings up another interesting point... even places capable of sustaining life that are not Earth like (Or at least planet Earth like. It seems Europa is an exact copy of Deep ocean, minus oxygen content), it would appear such locations are incapable of more than one, possibly two types of eco systems.
Something to look into on a slower day.
magnetic fields, from my knowledge, are the result of an entire planets composition. To generate a magnetic field in this way, we'd need to rebuild a planet from scrap.Valate said:
Or generate artificially, which would require such massive amounts of energy, I question the whole point of the endeavor.
Well, when you compare nearly seven billion people with the nearly infinite amount of planets that are in existence, we are very small. To think that Homo sapiens was the only sentient being to develop out of the limitless potential out there, that Earth is the last bastion of life in the entire universe... it's almost sad, and it certainly makes one want to practice conservation efforts more. And to think, a single chunk of rock spinning through space could wipe it all out. Bang. Gone in an instant.GiantRaven said:
Anyway, sleep well tonight!
I'm pretty sure our magnetic field is caused by our spinning iron core. So such planets like Mars, without a spinning core, could be "spun on", creating a magnetic field.AccursedTheory said:
The keyword there is "potential"
Only one of those could very well be not lethal to humans.
Though it'd be cool to see other types of life on those planets.
I know that bacteria and stuff like that is most likely, but is it too much to hope that there's another sentient species on one of those planets.
Even if it wants to destroy the earth, it'd just be cool to find.
Only one of those could very well be not lethal to humans.
Though it'd be cool to see other types of life on those planets.
I know that bacteria and stuff like that is most likely, but is it too much to hope that there's another sentient species on one of those planets.
Even if it wants to destroy the earth, it'd just be cool to find.
lol, I like how the FIRST post on this, sums up what I was going to say.AccursedTheory said:
Being in the habitable zone is extremely rare and awesome, but there are still a trillion other factors to take into account.
So... how do you terraform a planet?Bohemian Waltz said:
Please tell me, I am dying to hear it.
Or you could just use a big magnet on the surface to stir up the core, but thats a bit less cinematic than tunnelling to it.AccursedTheory said:
First of all, I have never bought into the "if the physical constants were a little different...". Sure there are permutations where the universe can't exist and where life can't exist but I don't buy this is the only one where life can exist. Now, I am not sure you understand just how big space is. We have found unicellular life on Mars and theorized it on Io. Two or three planets in the solar system is pretty big(one is even out of the habitable zone!). There are somewhere between 100-400 billion stars in the Milky way(oldest known one is 13.2 billion years). Now, estimates vary between 100-500 billion galaxies in the universe. Now, lets say that 1000th of those stars have planets and 1 in 1,000,000 of those planets can even have unicellular life. Just for kicks lets take the lower bound of the estimates. That brings us to about 1e13 planets. Out of all of those planets, not even two can sustain the most simplistic life for more than a few million years?Custard_Angel said:
I imagine a magnet large enough to do something like that would simply tear a hemisphere off of the planet.philosophicalbastard said:
USG Ishimura, I choose you!
Bloody Core. Virgil can sustain the pressures and heat of the core of the Earth, but not falling Boulders?
Right, on to life -
Measurements of life as they are on Earth are what is being used to measure the probabilities of life on other planets.
Not without good reason - we haven't found any life other than how life has formed on Earth - but that there is no reason to believe that our Carbon-based life form, as it is on Earth, is the only way life could have formed.
A silicon-heavy planet, for example, could have silicon-based life forms. It could also have heavy elements of Arsenic, which they consume with wild abandon.
Concieving of human-esque level (Ie sentient, macro)is not easy for the reason that we don't know what other possible conditions could create life.
We just don't.
Right, on to life -
Measurements of life as they are on Earth are what is being used to measure the probabilities of life on other planets.
Not without good reason - we haven't found any life other than how life has formed on Earth - but that there is no reason to believe that our Carbon-based life form, as it is on Earth, is the only way life could have formed.
A silicon-heavy planet, for example, could have silicon-based life forms. It could also have heavy elements of Arsenic, which they consume with wild abandon.
Concieving of human-esque level (Ie sentient, macro)is not easy for the reason that we don't know what other possible conditions could create life.
We just don't.
Wasn't there that asteroid they discovered which had 64 ifferent protein chains (Whereas Human DNA for example needs twenty in order to be split up into polypeptides anjd what not)? I mean obviously something bad happened to this place with all these complex proteins ... but surely if a planet can produce such complex amino acids then it could feasible maintain (bacterial) life ... or atleast viral ... but viruses aren't technically life, only eucaryotes.AccursedTheory said:
I mean when it comes down to it, you have 'left handed amino acid life' and 'right handed amino acid life' ... but all life on Earth is 'left handed amino acid life' .... and the reason for that is it's theorized the amino acid protein chains came here on asteroids and it just sorta kicked off from that.
That and it has something to do with water and amino acids <.<
So assuming you have all these complex proteins in carbon metorites flying throughout space and that Earth wasn't as nice a place as it is now (like 3.4 billion years ago when you had the first eucaryotes) surely that tips the balance in the favour of finding life on other planets, even far more 'different' than our Earth today.
Edit: I mean the first procaryotes lived in volcanic shafts and 'survived' on the chemical reactions of water and sulfur .... or something like that. Surely gotta be something out there on a planeet even vaguely like our own on systems even close to ours that would have such geography that it would match these 'protein stew' locations of primitive Earth.
The universe is so damn big a planet at least somewhat similar to ours and able to support life (life as we know it at least) is almost certainly out there. However while this looks promising theres no absolute guarantee that any of those 54 planets are life sustaining.Trolldor said:
Also this is a little irrelevant but I don't understand how many people seem to think some form of extraterrestrial life absolutely needs the same things we do. Like I said before the universe is massive and we have seen so little of it.
Anything is possible, but I'm holding my breath for anything like
anytime soon.Scarecrow 8 said:
Well I wouldn't, or anyone for that matter, be living near a planet in the middle of being terraformed, so surface distortion would be acceptable.AccursedTheory said:I imagine a magnet large enough to do something like that would simply tear a hemisphere off of the planet.philosophicalbastard said:
USG Ishimura, I choose you!