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Do aliens exist?
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2017-08-24 at 2:07 PM UTCseriously I want everyne on this forum to weigh in and give their weigh in on the alien conspiracty.
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2017-08-24 at 2:37 PM UTCsome say there are so many stars out there that there must be life somewhere. but then some scientists point out that there were so many variables in the formation of earth to enable life to exist here, that it is also quite possible that the exact occurrence of all those variables being repeated is almost unlikely.
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2017-08-24 at 2:40 PM UTCi'm sure there must be an equation taking those variables into account which could give some idea to how likely it is of being repeated elsewhere tho. just need to compare those variables to the size of the universe and number of stars to give an idea.
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2017-08-24 at 2:47 PM UTCfor example, if it was a 50 billion to 1 chance of the planet forming in such a way as to enable life, and the universe had 50 billion stars, then it would be unlikely that we wasn't alone. if there were 50 billion and one, then there would be a tiny fraction of a chance that life existed elsewhere. but if there were 100 billion stars, then it would be fairly likely to have repeated at least one other time.
of course it could have already happened billions of years ago and become extinct already, as well as the fact that it doesn't guarantee that the life would be in anyway intelligent.
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2017-08-24 at 2:49 PM UTC
Originally posted by Bill Krozby seriously I want everyne on this forum to weigh in and give their weigh in on the alien conspiracty.
no...they're not coming to abduct you to probe your orifices so stop fantasizing about it and stick with the niggers for your butt-stuffing festishes, you retarded faggot. -
2017-08-24 at 4:31 PM UTCThe following users say it would be alright if the author of this post didn't die in a fire!
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2017-08-24 at 5:16 PM UTC
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2017-08-24 at 5:30 PM UTCNo, they don't.
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2017-08-24 at 5:32 PM UTC
Originally posted by NARCassist for example, if it was a 50 billion to 1 chance of the planet forming in such a way as to enable life, and the universe had 50 billion stars, then it would be unlikely that we wasn't alone. if there were 50 billion and one, then there would be a tiny fraction of a chance that life existed elsewhere. but if there were 100 billion stars, then it would be fairly likely to have repeated at least one other time.
of course it could have already happened billions of years ago and become extinct already, as well as the fact that it doesn't guarantee that the life would be in anyway intelligent.
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To be fair, the case could also be that we don't know all the constituents for "life," and what we understand as requirements to produce it, may be different in the unseen parts of the universe.
Perhaps there are alien life forms that don't require anything except oxygen, or sulfur, in order to exist. -
2017-08-24 at 5:49 PM UTC
Originally posted by mmQ To be fair, the case could also be that we don't know all the constituents for "life," and what we understand as requirements to produce it, may be different in the unseen parts of the universe.
Perhaps there are alien life forms that don't require anything except oxygen, or sulfur, in order to exist.
yes, and that. but a probability can only be calculated on what you do know.
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2017-08-24 at 6:23 PM UTCLife is only a mystical thing when you think about how we hairless apes can train the domesticated descendants of wolves to give you a high-five so we can post it for literally the rest of the world to see. It is far less mystical when you think about how life started not with apes, dogs, or even protozoa, but with the chance creation of proteins and RNA.
Think about it. The earth is supposedly 4.5 billion years old and life is estimated to have begun at three and a half million or so. You know how many zeros a billion has? It has twelve zeroes: 1,000,000,000,000. We only left Africa some fifty thousand years ago. That's ~50,000. And we've been thinking seriously about this origin of life debacle for much less than that.
I mean, anything can happen when you're measuring with twelve zeroes. It is really not so far-fetched to think that there is somewhere out there in the universe where a similar chemical reaction occurred, and life popped up. I'm not saying it isn't rare, but the universe is fucking big. Bigger than big. We use the word big to describe things which are large and end. We don't even know if the universe ends.
I find it really hard to believe that there aren't aliens with all this time and space floating about. We'll probably never, ever meet them. Not in our lifetimes and possibly not in humanity's lifetime. The chance of us being the only living thing is so slim. I don't think the earth's chemical makeup or temperature is such an impossible thing to happen again. Sure, maybe they're silicone or sulfur or boron or iron or magnesium based life form, and maybe they look nothing like us. Maybe we wouldn't even recognize them as life.
I just think it's far more of an assumption to say that there aren't aliens than to say that they're probably somewhere out there. You can take your tinfoil hat UFO theories elsewhere though.
Post last edited by 霍比特人说中文不好 at 2017-08-24T18:28:14.511134+00:00 -
2017-08-24 at 6:25 PM UTC
…the origin and subsequent evolution of life follow from the fundamental laws of nature and “should be as unsurprising as rocks rolling downhill.”
https://www.quantamagazine.org/a-new-thermodynamics-theory-of-the-origin-of-life-20140122
Yes, probably. And probably in ways we cannot imagine. Maybe some aliens aren't even from our universe but travel from other timelines or dimensions. Or exist on a different plane of existence all together. -
2017-08-24 at 7 PM UTCthis is just a fraction of the factors necessary to enable life.
15 “Goldilocks" Factors That Allow Life on Earth to Exist
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There's more to life on earth than its ability to sustain liquid water.
Earth is often referred to as a Goldilocks planet. This has traditionally been connected to Earth's proximity to the sun allowing liquid water to exist on its surface. In fact, that assumption and some others led to something called the Drake Equation developed in Greenbank, West Virginia in 1961. It was a complex equation that calculated the number of planets in orbit around a star at the ideal distance for the sustained existence of intelligent life. The number of planets postulated based from the Drake Equation were 1000 to 100,000,000 in the Milky Way galaxy. More recent data from Kepler has put the estimate to around 12-17 billion Earth like planets in the Milky Way.
It may be true that billions of planets or more are in this "Goldilocks" orbit but what kind of life are we talking about and how are we defining intelligence? Bacterial, single-celled organisms or complex and diverse organisms with cognitive intelligence? In order for an advanced species to evolve and emerge as an intelligent, cognitive being such as humans - numerous other Goldilocks factors need to occur. It's not just about the water. Fortunately for us, we have that advantage. Here are the top 15 Goldilocks factors that make life on Earth as we know it possible.
Image by Nasa.gov
1. Proximity to the Sun allowing liquid water.
This is essentially the greens-fee for any form of life in the universe. Yes, it's possible that life can exist without water but those ideas are purely theoretical and no empirical evidence exists to support the assumption.
2. The size and composition of Earth as a Rocky Planet
Given some recent studies of distant stars and the on-going discovery of exoplanets, many planets in the universe appear to be gas-giants similar to Saturn, Jupiter, Uranus and Neptune. While there are also theories to imagine life on gas planets, the current science indicates that a rocky planet offers the best foundation for life and especially the diversity of life.
3. Stability of Earth's atmosphere and chemical composition.
An atmosphere appears to be critical to life whether it be a gaseous atmosphere on the surface of the planet, or a saturated atmosphere such as the Earth's oceans, seas, lakes and rivers. The chemical composition and density is also important. Mars has a very thin atmosphere and the ability of an organism to derive sustenance from the scant molecules is one of the factors that makes abundant life on Mars problematic. Not so on earth. Our atmosphere is rich in Nitrogen, Carbon Dioxide, Oxygen and other compounds that create a benign atmospheric combination.
4. The Magnetosphere.
Earth's Magnetosphere rendition.jpg
Image by NASA
The fact that Earth has a metallic, molten core creates a magnetic field around the planet called the Magnetosphere. This invisible "gravity shield" deflects radiation from the sun and space and protects organisms on the planet from the solar wind. Mars was once a highly volcanic planet (an indication of a molten core), but its volcanoes have long-since become dormant and it appears to have a very weak and fluctuating Magnetosphere. This may be why its atmosphere is virtually non-existent. The solar wind simply stripped it away without the protection of a strong and steady Magnetosphere.
5. Consistency of temperatures on Earth.
The average temperature on Venus is 462°C (864°F). On Mars it’s -60°C. (-80°F). Earth's temperature average is 15°C. (59°F). The average temperature on Earth not only allows liquid water to exist, but also provides a relatively stable environment for organisms. Temperature extremes limit diversity of biological life forms, and while some bacteria can survive extremes, advanced organisms typically are too complex to endure the extremes.
6. Diversity of Life.
Blue Linckia Starfish.JPG
Copyright © 2004 Richard Ling
The Diversity of life on Earth has two unique advantages. For one it creates a food-chain that can sustain a variety of species allowing for greater evolutionary development. This is important given the statistical inevitability of catastrophic events on any planet. In fact, the diversity of life on Earth may be the only reason life on Earth has continued after the extinction of 65% of all species including the dinosaurs 65 million years ago due to an asteroid impact, and nearly 95% of all species 250 million years ago due to a massive series of volcanic eruptions across what is now Siberia.
7. Earth's moon.
Our moon has a remarkable, stabilizing affect on our planet. Without the moon, the rotation of the Earth would result in a day that averages about 4 hours. The moon has slowed us down to a comfortable 24 hours and has also stabilized Earth's rotation on its axis. The moon also creates tides which is believed to have created an evolution machine in the tide-pools and tidal-zone between land and sea. This repeated tidal action is thought to have encouraged evolution as animals on the shore slowly became accustomed to a daily land and sea environment allowing them ultimately emerge onto the land.
8. Stability of the Sun as a star.
Our sun is actually a very average star in terms of size and activity. That's a good thing. That means the radiant heat and radiation is typically consistent although occasional solar flares do show up to send out bursts of radiation. Fortunately we have survived those rare bursts for thousands of years. Our sun is also a solitary star. It's believed that 85% of stars in the Milky Way are binary stars. It's interesting to think about two stars orbiting each other, but for planets in a solar system the gravitational forces would wreck havoc on the planets and probably cast asteroids and comets around like shot from a shotgun.
9. The Ozone Layer.
NASA and NOAA Announce Ozone Hole is a Double Record Breaker.png
Image by NASA
We hear about the Ozone layer all the time. In fact, we now know there are recurring holes in the Ozone at the north and south poles. Ozone is much like the Magnetosphere. It's another buffer against solar radiation especially Ultra-violet (UV) radiation and is another result of our dense and complex atmosphere. Even though many planets may have a robust and dense atmosphere, the existence of an Ozone layer and the function it performs as a radiation shield is most likely rare and unique.
10. The amount of water on earth.
Water on a planet is a great way to give life a head start. But you need more than a puddle. Some theories postulate that the water on earth was largely due to icy, comet collisions during the late heavy-bombardment 3.3 to 4.5 million years ago. The result was essentially a water planet with less land than sea. If water is the wellspring of life, Earth has more than enough.
11. Jupiter as a Solar System vacuum cleaner for asteroids, comets, and meteors.
Astronomers watched in amazement as the comet Shoemaker-Levy broke into 9 pieces and slammed into Jupiter in 1994. The impact on the planet was frightening and a reminder of Jupiter's value in our Solar System. In many respects, its immense gravitational field acts like a system wide vacuum cleaner attracting rogue asteroids, comets and meteors to its surface and away from other planets including Earth.
12. The stability of the solar system.
3.3 to 4.5 millions years ago, our Solar System was a highly unstable environment. The orbits of the gas giants on the outer rim of our Solar System were closer and not as concentric resulting in a maelstrom of rocky debris and icy comets in constant collision across the planets. Any life at that time didn't stand a chance beyond the most resilient and buried bacteria. No doubt, there are millions and millions of solar systems enduring the same. Fortunately, our Solar System is relatively stabilized in terms of planetary orbits.
13. Our location in the Milky Way Galaxy
Milky Way galactic habitable zone.gif
The galactic habitable zone. Image by NASA
Our location in the Galaxy is at the edge of a spiral arm called the Orion Arm, and is about two-thirds of the way from the center of our galaxy to the edge of the starlight. That's a very good place to be. Stars and systems closer to the center of the Milky Way are in a very crowded neighbourhood where collisions with celestial bodies and high radiation exposure is statistically higher. There's also the affect of that super-massive black hole at the center of our galaxy. Our location is a very good one that once again provides relative stability and safety.
14. The Stability of the Galaxy.
Yes, galaxies matter too. Many galaxies are in collision. In fact, the Milky Way galaxy is on a collision course with the much larger Andromeda galaxy in about 3 billion years. The Milky Way galaxy is also rather small compared to some of the giants that occupy the universe. This too could decrease the odds of dramatic and cataclysmic events that might take place in a dense, massive galaxy.
15. The Stability of our Quantum Universe
No one thinks about this much, but there is a theory that parallel universes exist. There are 4 levels of parallel universe and some of them would result in very strange places indeed. Our quantum universe seems apparently stable with firm laws of motion, energy, matter and gravity consistently applied across the universe. It may seem far-fetched but in addition to every other factor we may also be living in a Goldilocks universe.
http://www.learnastronomyhq.com/articles/15-goldilocks-factors-that-allow-life-on-earth-to-exist.html
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2017-08-24 at 7:20 PM UTCI've had abduction dreams...seen shadow aliens on the wall...
The whole nine yards -
2017-08-24 at 7:46 PM UTCi said it before :
we're all alien life forms that landed on this planet multi billion years ago not as complete lifeforms but as chunks of protein and bits of dna and pieces of rna onboard shards of space rocks and ices.
millions of years after our landing, we're reassembles, again not as a complete multicellular organism ... but as simple virus that wiped out dinosaurs and other apex predators completely to pave the way for our own genesis.
infact all the viruses and plagues that we have today might spawn into new some new life form a few million years from now ....
a new menchen.
and the only native, non alien sentient beings on this planet are niggers. those things are just too, way too primitive and too genetically inferior to have came from other planets that have existed long before this planet.
too bad we have to adopt their mitochondria to adept to life on earth. -
2017-08-24 at 8:52 PM UTCScientists are still struggling to find how how the Earth can be the center of the Cosmos, when it's only one small planet among billions, and billions of other universes. And yet all modern observations point to the fact that it is. All reality as we know it began right here from Earth's exact location.
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2017-08-24 at 8:58 PM UTCtheres no earths exact location.
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2017-08-24 at 9:01 PM UTC
Originally posted by benny vader i said it before :
we're all alien life forms that landed on this planet multi billion years ago not as complete lifeforms but as chunks of protein and bits of dna and pieces of rna onboard shards of space rocks and ices.
millions of years after our landing, we're reassembles, again not as a complete multicellular organism … but as simple virus that wiped out dinosaurs and other apex predators completely to pave the way for our own genesis.
infact all the viruses and plagues that we have today might spawn into new some new life form a few million years from now ….
a new menchen.
and the only native, non alien sentient beings on this planet are niggers. those things are just too, way too primitive and too genetically inferior to have came from other planets that have existed long before this planet.
too bad we have to adopt their mitochondria to adept to life on earth.
Scientology? -
2017-08-25 at 1:51 AM UTC
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2017-08-25 at 5:35 AM UTC
Originally posted by -SpectraL Scientists are still struggling to find how how the Earth can be the center of the Cosmos, when it's only one small planet among billions, and billions of other universes. And yet all modern observations point to the fact that it is. All reality as we know it began right here from Earth's exact location.
Earth isn't even in the center of our galaxy.
