[Discussion] Alien Life ?

[Kishi Uzumaki]

From alien life it doesn't mean only grey or green ( whatever the color lol ) human like things but it even includes the tiniest of beings....... as far as we knows it's our earth the only planet that inhabit life and it's only planet we knows have ingredients and requirements for life to evolve into complex levels as it is

so first i will list what they're

Spoiler

• 1. Energy - The energy for life on Earth all comes from the shuffling of electrons from molecule to molecule by chemical reactions, which is driven by light-absorbing proteins in the case of photosynthesis
  
  2. Carbon - Carbon is the backbone of life on Earth because it can support an extraordinary variety of molecules for use in biology.
  
  3. Liquid water - Liquid water serves as the solvent in which the chemical reactions of life on Earth take place
  
  4. miscellaneous factors - Other factors required by life on Earth include elements such as nitrogen, which is used to make proteins and DNA, among many other molecules.
  
  5. Habitable zone - that in order for life to arise and survive, it must be found on a planet or moon within the habitable zone of a star. The habitable zone refers to the region around the star in which liquid water can form and remain liquid. The size of the star is important as well. Stars that are much larger than the Sun have such short lifetimes, that it is unlikely that there would be enough time for any kind of life, particularly complex life, to develop.
  
  6. Solar System Clean-Up - a large planet - like Jupiter - in a planetary system. Because Jupiter is so much more massive than all the other planets, it attracts many asteroids, comets and other objects that travel within the Solar System. This is important because otherwise, some of these objects would end up crashing into Earth, and many did in the very early formation of the Solar system. Jupiter’s gravity, along with Earth’s atmosphere combine to protect the Earth from many impacts that would certainly have sterilized Earth many times.
  
  7. Plate tectonics - Unlike on Venus and Mars, the crust of the Earth is constantly being recycled. This keeps the carbon dioxide levels in the atmosphere from getting too high or too low. If the levels become too high, (as they did on Venus) they act as a greenhouse gas and the planet becomes too hot. Liquid water evaporates and the surface of the planet dries up. If the levels become too low, the planet cools and an ice age begins. This has happened several times in Earth’s history, but each time, because of the motion of the plates and the continued recycling of the carbon in rocks, carbon was released into the atmosphere eventually raising the levels of carbon dioxide and allowing the planet to warm again. Without this carbon cycle, planets don’t seem to be able to maintain a climate balance appropriate to sustain life.
  

so what I'm coming at is what if life has evolved somewhere but using other ways ( 5 , 6 ,7 are essentials ) than 1 , 2 , 3 ,4 for example Saturn's moon Titan has liquid ethane and methane lakes and oceans under ice caps of Europa ( one of Jupiter's moons ) click this link for more info

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that believed to be able to support life .

so what you guys have to do is give your opinions or a heads up if i missed something and discuss

 

[DominiqueX]

I'm sure that there are plenty of "alien" life-forms out in the dark of the universe. It's just too big and has too many planets and stars to be completely empty except for one single planet.

But I'm affraid that we will never be able to find something that is still alive, since the universe is expanding and we are too busy wasting our time with fighting and killing our own kind for no reason instead of fully focusing on serious and important things. I'm looking forward to anything that has to do with the planet Mars tho. As far as I know, scientists said they found indications of liquid water there. Hopefully I'll live long enough to witness the Mars-mission where people fly over there and look for that water. Maybe they'll find bacteria there, who knows.

But due to the unimaginable distances.. even if we were able to travel to a planet with alien life that is far away, everything will most likely be already dead when humans arrive there.

 

[patrickscott]

I think we are still in the dark about things considered "Alien organisms" I believe this info is being somewhat withheld from us humans, by us humans.

 

[FreakensteinAG]

We have just recently been able to find planets orbiting stars with "good" accuracy -- we measure the luminescence of the stars using the KEPLER space telescope, then we observe the moment in which the light bends or dims. So with that said, our exoplanet count is very slim.

So back to the OP, we absolutely can find life using these prerequisites for what gave us life. Why is carbon so great? Because it can bind to almost anything. There are 1000x more organic products than inorganic products. Carbon is the fourth most common element in the universe. But life might not have to be carbon-based. Silicon can bind to four other elements too. Silicon is the 8th most common element in the universe. In fact, it might have been possible for us to be Silicon-based, as we have silicon everywhere on Earth.

 

[Chikombo]

They found water on Mars, so assuming life evolves the same as it does here, even though some people say if things had been different life would have evolved but different, the possibility is there right? Out of so many planets and stars out there some are bound to be under the same circumstances as here on earth and develop life somehow, the conundrum for me is how would people react to other life forms, I mean there are other life forms here on earth we call them animals but really we are animals too, how do we deal with animals from other planets and does conflict arise if these animals possesses human qualities like speech or religion, politics, science law etc? Do we treat them as animals or as fellow human beings? If people are racist to people with different ethnicity imagine then the racism against people with different races.

 

[DominiqueX]

They found water on Mars, so assuming life evolves the same as it does here, even though some people say if things had been different life would have evolved but different, the possibility is there right? Out of so many planets and stars out there some are bound to be under the same circumstances as here on earth and develop life somehow, the conundrum for me is how would people react to other life forms, I mean there are other life forms here on earth we call them animals but really we are animals too, how do we deal with animals from other planets and does conflict arise if these animals possesses human qualities like speech or religion, politics, science law etc? Do we treat them as animals or as fellow human beings? If people are racist to people with different ethnicity imagine then the racism against people with different races.

@bold
Exactly. We humans are a very idiotic species if you look at the bigger picture. If intelligent life came here for a visit, there would be very soon racism-problems and probably a movement like "Alien lives matter" or something like this very soon after that. It would be better for everyone if we never find or make contact with alien life forms.

I'm sure that humans would be very hostile against alien life forms if these are not superior in terms of weaponry and technology. "Simple" life forms like our animals would be captured and tested on in laboratories. This is already happening to poor innocent life forms here on Earth. Intelligent life forms would get exploited or eradicated preventively because they could be "a threat to humanity"... or simply because humans want their ressources.

 

[Hexuze]

Europa is intriguing to me. It has like twice the seawater here on earth...

 

[Marin]

Life in some primitive form? Yes, why not?

Life similar or more advanced than our? Nope. Too many necessary conditions. We're one in a very big number. Even if there are similarly advanced life forms we won't be able to find them. Not in a millenia atleast.

 

[Lightbringer]

China built a wall, and they almost have no aliens.

 

[HashiraMadara]

I'm sure that there are plenty of "alien" life-forms out in the dark of the universe. It's just too big and has too many planets and stars to be completely empty except for one single planet.
.

I support that there may be life forms somewhere else... But not in the "dark universe". By calculations there can be no "matter" in the "dark universe" because during cosmic inflation the expansion was > 3c. Meaning there is no possible way non vacuum energy may exist to produce life forms.

 

[V h o]

Perhaps, it seems possible that there could be alien life of some kind .

 

[DominiqueX]

I support that there may be life forms somewhere else... But not in the "dark universe". By calculations there can be no "matter" in the "dark universe" because during cosmic inflation the expansion was > 3c. Meaning there is no possible way non vacuum energy may exist to produce life forms.

With "dark universe" I just meant "within the vast space of the universe". I added the word "dark" because it is... well.. dark. Didn't know that "dark universe" was actually a term. Obviously life has to be on a planet/moon if it is not flying around with a spaceship.

 

[HashiraMadara]

With "dark universe" I just meant "within the vast space of the universe". I added the word "dark" because it is... well.. dark. Didn't know that "dark universe" was actually a term. Obviously life has to be on a planet/moon if it is not flying around with a spaceship.

Cool . Dark Universe in physics = "Parts of the universe where light/energy hasn't caught up to yet since the big bang" Meaning it's null void of vacuum. During cosmic inflation universal expansion accelerated to be > 3c where c = speed of light. Meaning Dark universe is actually much much bigger than the known universe coined "finite universe" =D.... Gee this takes me back, why did I drop astrophysics again? =D

 

[Kishi Uzumaki]

I'm sure that there are plenty of "alien" life-forms out in the dark of the universe. It's just too big and has too many planets and stars to be completely empty except for one single planet.

But I'm affraid that we will never be able to find something that is still alive, since the universe is expanding and we are too busy wasting our time with fighting and killing our own kind for no reason instead of fully focusing on serious and important things. I'm looking forward to anything that has to do with the planet Mars tho. As far as I know, scientists said they found indications of liquid water there. Hopefully I'll live long enough to witness the Mars-mission where people fly over there and look for that water. Maybe they'll find bacteria there, who knows.

But due to the unimaginable distances.. even if we were able to travel to a planet with alien life that is far away, everything will most likely be already dead when humans arrive there.

we are only thinking on life that has similar properties as ours but even the first organisms on Earth appeared on the darkness of the ocean floor and depths that have unbearable pressure and there's evidence some bacteria can survive in harsher conditions .

yes USA cuts the expanses of NASA but expend lot of money on wars and weapons ignoring the important matters like gun control on deaf ears and from what i heard scientists are not allowing the Mars rovers to go to the areas that have sign of water thinking that some of small organisms like bacteria on Earth might take a ride on them Lol

Probably there are thousands of galaxies out there our milky way is just only one of them so if there's advanced life there on other galaxies it will be distance to travel that be the obstacle considering only 3-4 of our satellite gone beyond our solar system .

 

[DominiqueX]

Cool . Dark Universe in physics = "Parts of the universe where light/energy hasn't caught up to yet since the big bang" Meaning it's null void of vacuum. During cosmic inflation universal expansion accelerated to be > 3c where c = speed of light. Meaning Dark universe is actually much much bigger than the known universe coined "finite universe" =D.... Gee this takes me back, why did I drop astrophysics again? =D

Okay, thank you for clarification. My bad of using the wrong words.

 

[Yubel]

The real question we should be asking is: why do we give a shit if there are aliens or not?

It will not improve our lives here on earth in anyway shape or form.

 

[DominiqueX]

The real question we should be asking is: why do we give a shit if there are aliens or not?

It will not improve our lives here on earth in anyway shape or form.

Yeah... you only think and care about yourself huh?

 

[Floydical]

Yes, there is life elsewhere. Life on some level is all but certain to exist elsewhere. Life like ours may be extremely rare or almost non existent, but people have already imagined balloon-like creatures that could live on gaseous planets like Jupiter, where they'd essentially be floating around at all times. The point is we need to keep an open mind in regard to what alien life might look like and how it can develop. We also need to keep in mind the sheer vastness of space and the high likelihood of some form of life elsewhere.

 

[FreakensteinAG]

The real question we should be asking is: why do we give a shit if there are aliens or not?

It will not improve our lives here on earth in anyway shape or form.

It most certainly would, Yubel! The primitive extraterrestrials might provide products/proteins that would benefit human and animal life on Earth, whilst intelligent extraterrestrials might give us advice on scientific exploits, or even trade with us. Imagine new industries with extraterrestrial products. Economies would boom! Just even exploring planets that we (at that time) know harbor extraterrestrial life would give us insight on how life can bloom and the prerequisites needed for 'other' life to exist.

 

[Yubel]

It most certainly would, Yubel! The primitive extraterrestrials might provide products/proteins that would benefit human and animal life on Earth, whilst intelligent extraterrestrials might give us advice on scientific exploits, or even trade with us. Imagine new industries with extraterrestrial products. Economies would boom! Just even exploring planets that we (at that time) know harbor extraterrestrial life would give us insight on how life can bloom and the prerequisites needed for 'other' life to exist.

That's just speculation combined with a fantasy of how you would like it to be. Get real, assuming intelligent life even exists you really think it'd allow you to use their primitive kind as a protein source? And how do you know their economy if they have one would be like ours? And I'm sure whatever benefit you receive will be equal to what you lose in the process.