Topic: Water on Mars? Bleh. Astronomers may have found giant alien 'megastructures' - page 2. (Read 2703 times)

That is why it is time to switch to private companies and entrepreneurs... It will make everything faster, with less waste of money.

This kind of news shows how much NASA is lacking funds nowadays, it's sad really

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If Einstein is right that are no faster than light. The distance of this civilization is 1500 light years away. If they point their instruments now to our Solar System what they see is what happen 1500 years ago. We are still not emiting radio signals yet. No rockets, spaceship or satelites floating in space. We are still fighting with swords.  

If they are near level 2 civilization they are still begining exploring the other solar systems near them.

I assume life in the universe is common. Why they go to earth if there are other nearer million planets available.  

If they visit us and they insist they don't wan't to be seen. I'm sure they would be invisible to us. Their spaceship would be superstealthy and has cloaking device.

for number 1, assuming the hypothetical civilization is indeed millions of years ahead of ours, i wouldnt expect distance to be an issue, assuming sci-fi style space travel was possible in this universe. as for number 1, if the civilization was indeed that advanced, contacting us shouldnt be a problem either with their vastly superior technology. nothing to say for statement 3, but for #4, its very possible they are merely observing us for now, judging weather we are worth contacting, or may be a future threat to their civilization.

We would never know for sure. But what makes us so special out of 1 trillion planets in milky way galaxy alone. This is not include the other 100 billion galaxies.

Why they never contacted us?
1. The could be very far from us.
2. We don't know if they tried contacting us before. We just delevelop the capacity to read signals in just a century ago. This is like a pico second time lapse in the universe.
3. They  already controlling us without us knowing it.
4. They see us like ants not worthy of contacting.

We actually don't know if they are AI themselves who takeover their creators.

Or the civilizations itself is like a big colony and acts like one super organism.

survival may be possible in a hivemind sort of civilization where free will doesnt exist, but rather the will of a central few. but i doubt it as well, if any civilization out there existed that were millions of years ahead of ours, they wouldve likely contacted us or tried (and succeeded) to exterminate us.

to say that mars was already habited i agreen but civilization died or go to other planet but to see civilizations into less tahn 1000 years light in planets it must be us to colonize.

I doubt there are any civilizations that are millions of years ahead of us. 

They would eventually destroy themselves.  How would they get past AI?

We are like primitives compared to this advance aliens who may have evolve and build civilization million years ahead of us.

I'm sure we would have a hard time understanding their technologies much like the human primitives understanding our current technologies now.

The one that dyson originally proposed is ridiculously unfeasible.  Large numbers of independent segments essentially work against each other's gravitational fields hence require energy inputs and propulsion to maintain their orbits.

Interestingly, the exact amount of energy for such offsets can be calculated at lest to a first approximation.  I doubt it would be a significant fraction of the solar output collected by the surfaces deployed in the orbits, but how would such thrust be done?

1.  Ion engines.  Really?  You are going to throw huge numbers of ions into the system, essentially gas it up?
2.  Chemical thrust.  Impossible, and worse than #1
3.  Some method we are currently not aware of.
4.  Solar sails?

I really do believe that there are alien civilizations out there who are far more technologically advanced.

Do they have any images of this discovery available. I would need to see it to believe it.

Why not? The idea of a completely solid shell maybe not. It could have too many problems and maybe not worth doing compared to other structures. But other types of dyson spheres are probably possible and not hard to maintain. Like the one dyson was originally talking about. Many independent segments around a star instead of a rigid shell.

not yet to out extent of knowledge at least. given a few hundred years into the future, im all for the possibilities of having something like this exist. now if the megastructure nasa found was indeed a dyson sphere the possibility of a type 3 civilization somewhere doesnt seem all too impossiible.

I don't believe a Dyson sphere is capable of being built and maintained, physically.

Interesting concepts though.

Sorry for my mistake, humans currently at 0.74 level. It would takes 100 to 200 years to reach Level 1.

Type I

    "Technological level close to the level presently attained on earth, with energy consumption at ≈4×1019 erg/sec (4 × 1012 watts)."[1] Guillermo A. Lemarchand stated this as "A level near contemporary terrestrial civilization with an energy capability equivalent to the solar insolation on Earth, between 1016 and 1017 watts."[3]

Type II

    "A civilization capable of harnessing the energy radiated by its own star (for example, the stage of successful construction of a Dyson sphere), "with energy consumption at ≈4×1033 erg/sec."[1] Lemarchand stated this as "A civilization capable of utilizing and channeling the entire radiation output of its star. The energy utilization would then be comparable to the luminosity of our Sun, about 4×1033 erg/sec (4×1026 watts)."[3]

Type III

    "A civilization in possession of energy on the scale of its own galaxy, with energy consumption at ≈4×1044 erg/sec."[1] Lemarchand stated this as "A civilization with access to the power comparable to the luminosity of the entire Milky Way galaxy, about 4×1044 erg/sec (4×1037 watts)."[3]


Type IV

   Beings who can control or use the entire universe.


Type V

who control collections of universes. The power output of the visible universe is within a few orders of magnitude of 1045 W. Such a civilization approaches or surpasses the limits of speculation based on current scientific understanding, and may not be possible.

    Zoltán Galántai has argued that such a civilization could not be detected, as its activities would be indistinguishable from the workings of nature (there being nothing to compare them to).[23]

He is talking about the Kardashev scale. https://en.wikipedia.org/wiki/Kardashev_scale it is based on how much energy a civilization can use. So a type 2 can use all the energy of their star. While we aren't even a type 1 yet.

The variations in the stellar output that are the subject of this inquiry are indeed odd.  Intervals of variation in brightness of 22 and 14% for example.  Large amounts of light are being shielded.  This is not the work of typical planets, those being tiny compared to the output of a sun (yet we detect those small variations, and calculate orbit from dopplar effect, and mass of the planets). 

A gas cloud with an orbital periodicity could exist around a star for a period of time.  Lets say max a few thousand years.  Might be a few million years, many factors influence it.

The gas would aggregate, and either fall into a gravity well of a planet or form one.

This is evidence of "odd" but not exactly evidence of "et."

Now if the periodicity of the variations formed a code that enabled the unlocking of encrypted data streams in what was previously thought to be natural noise of the Hydrogen spectra from the vicinity of the star in question, why that's huge.

What do you mean "level 2" .. how would you go about grading the progress of a civilization, if we ourselves don't know how far we can come along as man?