By continuing to use the site, you agree to our use of cookies and to abide by our Terms and Conditions. We in turn value your personal details in accordance with our Privacy Policy.
Please log in or register. Registered visitors get fewer ads.
Would normally just dismiss as gibberish, but the video shared is no longer available. Can you please either find me a new link to the video or let me know what exactly is going on.
0
Aliens Exist... on 00:54 - Jun 24 with 10129 views
Would normally just dismiss as gibberish, but the video shared is no longer available. Can you please either find me a new link to the video or let me know what exactly is going on.
It was/is genuine on my part, Anonymous group are claiming NASA is preparing to announce the existence of aliens basically and they seem pretty legit about it.
Don't think that's true at all. It seems likely but we simply don't know.
Virtually all experts think life exists, the numbers are too huge for us to be a one off.
With scientists finding planets around virtually every star solar systems seem commonplace.
So with 100,000,000,000 planets currently predicted in the Milky Way and with between 200,000,000,000 and 2,000,000,000,000 other galaxies the numbers are stacked heavily in favour of life.
We also know more about extremophiles now showing life can live in virtually anywhere which a source of energy.
I really should have said life rather than aliens but in the end if we are precise then you are correct, at the moment we can't confirm life elsewhere but I think you'd be hard pushed to find a scientist in the fields who doesn't think there is. Things have changed a lot over the last 20 years.
Virtually all experts think life exists, the numbers are too huge for us to be a one off.
With scientists finding planets around virtually every star solar systems seem commonplace.
So with 100,000,000,000 planets currently predicted in the Milky Way and with between 200,000,000,000 and 2,000,000,000,000 other galaxies the numbers are stacked heavily in favour of life.
We also know more about extremophiles now showing life can live in virtually anywhere which a source of energy.
I really should have said life rather than aliens but in the end if we are precise then you are correct, at the moment we can't confirm life elsewhere but I think you'd be hard pushed to find a scientist in the fields who doesn't think there is. Things have changed a lot over the last 20 years.
SB
[Post edited 24 Jun 2017 8:32]
This. It's bordering on a statistical impossibility that we are the only planet with life.
People don't like being told they aren't special and there is a host of religious ramifications as 95% of people on Earth align themselves to a faith.
As SB implies there is little chance it will be some chap with antennae who wants to challenge us to a galaxy Olympics but more likely a badger like creature 21 light years away.
Given the statistics we should expect every possiblity and be surprised by nothing.
Virtually all experts think life exists, the numbers are too huge for us to be a one off.
With scientists finding planets around virtually every star solar systems seem commonplace.
So with 100,000,000,000 planets currently predicted in the Milky Way and with between 200,000,000,000 and 2,000,000,000,000 other galaxies the numbers are stacked heavily in favour of life.
We also know more about extremophiles now showing life can live in virtually anywhere which a source of energy.
I really should have said life rather than aliens but in the end if we are precise then you are correct, at the moment we can't confirm life elsewhere but I think you'd be hard pushed to find a scientist in the fields who doesn't think there is. Things have changed a lot over the last 20 years.
SB
[Post edited 24 Jun 2017 8:32]
Tho the numbers start getting smaller again when you add in factors such as the proportion of planets within habitable zones, having a suitable chemical makeup, the types of stars suitable for development of life and so on.
Moreover there is a difference between a lifeform developing somewhere and one previously established adapting to a marginal environmnent to which it has moved.
Once you get into the realms beyond the most basic forms of life (e.g. the presence of amino acids), then timing becomes an issue. After all, it's been less than 100 years out of 4.5 billion for this planet alone that there's been anybody here emitting detectable signals (and most of those are so weak the chances of spotting them against the background any distance away are virtually nil).
So the chance of a much older, still extant, advanced civilisation being within detectable range (and vice versa), which we have not ourselves spotted, having the technology to circumvent the laws of physics (able to traverse interstellar/intergalactic distances in less than thousands or millions of years) is tiny indeed.
This. It's bordering on a statistical impossibility that we are the only planet with life.
People don't like being told they aren't special and there is a host of religious ramifications as 95% of people on Earth align themselves to a faith.
As SB implies there is little chance it will be some chap with antennae who wants to challenge us to a galaxy Olympics but more likely a badger like creature 21 light years away.
Given the statistics we should expect every possiblity and be surprised by nothing.
Thing is, we don't know enough yet about how life initiates to be able to say whether it would occur on an even statistical basis across the whole universe, or if chance factors (e.g. water-carrying asteroid impact at a particular stage in the development of a planet with exactly the correct chemical composition, the right distance away from the apropriate sort of star) might make it extremely rare.
Chances are more likely it's some sort of biochemical goo either very close (if such is found to exist almost everywhere), or more like 21 million light years away.
As for the theological implications, I can't think of any of the major world religions which specifically excludes the possibility of inhabited places elsewhere.
This. It's bordering on a statistical impossibility that we are the only planet with life.
People don't like being told they aren't special and there is a host of religious ramifications as 95% of people on Earth align themselves to a faith.
As SB implies there is little chance it will be some chap with antennae who wants to challenge us to a galaxy Olympics but more likely a badger like creature 21 light years away.
Given the statistics we should expect every possiblity and be surprised by nothing.
Discussions around the Fermi Paradox (if the numbers stack up where are all the bloody aliens) and the that of the Great Filter (all the Alien life forms eventually fail before they can get here) are mind bending.
Personally I have a lot of time for the Great Filter hypothesis, the question is, how far along that particular road is mankind and is it possible to ever change that path. The absence of evidence of visits from afar would suggest it is not. Depressing really!
I hope so. In my opinion it is 99.999999999999999999999% certain that life exists elsewhere. As long as contact is peaceful then bring it on. I suspect life will originally be found as single cell organisms or whatever the smallest possible life is.
The conspiracy theorists have long been out in front of this one. They think NASA are conditioning us to believe alien life exists in order to stage a fake invasion to enslave the Earth...
Tho the numbers start getting smaller again when you add in factors such as the proportion of planets within habitable zones, having a suitable chemical makeup, the types of stars suitable for development of life and so on.
Moreover there is a difference between a lifeform developing somewhere and one previously established adapting to a marginal environmnent to which it has moved.
Once you get into the realms beyond the most basic forms of life (e.g. the presence of amino acids), then timing becomes an issue. After all, it's been less than 100 years out of 4.5 billion for this planet alone that there's been anybody here emitting detectable signals (and most of those are so weak the chances of spotting them against the background any distance away are virtually nil).
So the chance of a much older, still extant, advanced civilisation being within detectable range (and vice versa), which we have not ourselves spotted, having the technology to circumvent the laws of physics (able to traverse interstellar/intergalactic distances in less than thousands or millions of years) is tiny indeed.
Agreed on a number of those points, however.
It seems a lot of solar systems seem to have planets within the habitable zone (Look at Trappist) and that the habitable zone is widening as we find out more about life on our own planet. It's becoming much more frequent to find planets within the habitable zone now.
With regards to the type of star, that matters less. The habitable zone moves in proportion to the radiation given off by the star, so the habitable zone around Trappist is much closer in because it's a dwarf star. Still a relevant factor as you point out though.
It's incredibly unlikely we will hear radio waves, our civilisation will stop emitting them soon enough in favour of more point-to-point systems like lasers. There are other ways to detect civilisations though depending on their level of advancement from orbital structures to the composition of the atmosphere (the James Webb telescope will help with that analysis).
Studies have shown that the whole of the milky way could be colonised in around 1 million years by a civilisation with slower-than-light propulsion methods. However you are probably right that we won't be able to contact any existing civilisation. That does not mean given the numbers they don't exist.
Realistically if we contact/meet aliens they are likely to be robotic in nature or some form of von neumann machine.
Discussions around the Fermi Paradox (if the numbers stack up where are all the bloody aliens) and the that of the Great Filter (all the Alien life forms eventually fail before they can get here) are mind bending.
Personally I have a lot of time for the Great Filter hypothesis, the question is, how far along that particular road is mankind and is it possible to ever change that path. The absence of evidence of visits from afar would suggest it is not. Depressing really!
The great filter is interesting.
Let's hope the improbable event was in our past, perhaps the time when humans were down to around 2000-8000 individuals (hence our lack of genetic diversity).
Virtually all experts think life exists, the numbers are too huge for us to be a one off.
With scientists finding planets around virtually every star solar systems seem commonplace.
So with 100,000,000,000 planets currently predicted in the Milky Way and with between 200,000,000,000 and 2,000,000,000,000 other galaxies the numbers are stacked heavily in favour of life.
We also know more about extremophiles now showing life can live in virtually anywhere which a source of energy.
I really should have said life rather than aliens but in the end if we are precise then you are correct, at the moment we can't confirm life elsewhere but I think you'd be hard pushed to find a scientist in the fields who doesn't think there is. Things have changed a lot over the last 20 years.
SB
[Post edited 24 Jun 2017 8:32]
I understand the statistical argument, but its really not evidence of life. We might be unique, or exceedingly rare. Most experts think there is a good likelihood, but to say that they all think life exists is, I think, stretching it. Most would say we dont know- and would point to things like the Fermi paradox which raises some interesting questions. They would say, I imagine, that the likelihood is high, but not that they have any certainty.
The presence of those seeking the truth is infinitely to be preferred to the presence of those who think they've found it.
(Sir Terry Pratchett)
By continuing to use the site, you agree to our use of cookies and to abide by our Terms and Conditions.
