/sci/ - Science & Math

They probably know we're here and won't contact us until we reach a certain technological level.

>>3826686

Or at least until we become civilized. I don't see how our technological standpoint would keep aliens from visiting us. If we weren't such a destructive race, maybe we could have been contacted already?

>>3826711
We can barely get to our moon and keep our satellites in orbit. Really?

bump

>>3826718

What are you saying?

I really think we will find life on another planet or moon in our life time, perhaps in 5 years, perhaps in 60. We're just advancing so fast as long as we don't kill each-other.

I await turning on the super computer when I'm 60 or so and seeing "NASA2.0 has now found the 6th planet with life on it! hurrpedurpeding"

>>3826788

I hope your right.

How does it feel to realize that we will never meet intelligent life in our lifetime. You will never get to meet an alien, ever.

feels bad man.

>>3826591

Add the assumption(s):
1. They aren't too advanced and destroy themselves
2. They want to be found (emit radio waves)
3. They aren't too primitive or dissimilar from us (impossible to detect)
etc.

I think your numbers are a bit big, but I agree with you on the general concept

>>3826770
That we've only been technologically capable for about 200 years and know little beyond our societal requirements or whims. Nuclear power, cell phones, particle smasher. Go Earth!

>>3826801
Probably better that way in any case.

>>3826788
But not celestially. Only in theory and the great technology of minimizing useless peripheries are we making much actual progress. Alternative energy is still at a standstill and we make everything out of corn now. Taking pictures and "planning missions" doesn't accomplish anything.

>>3826809

That is true, 200 years is nothing. Imagine what we could accomplish in another 200 years..

I wonder what our next evolutionary step will be. I think science will combine humans with computers, imagine what we could accomplish then.

>>3826844
The post doesn't exist because I screwed up tripcoding. I'm pretty against the whole synthesis of genetic/bionic components honestly. Yes it does make sense as the next step, or to just make automatons which could do our bidding. I just don't agree, not for a religious reason either. It's like techie body modding and more creepy.

>>3826860

A better question is: is their even a next step in evolution?

>>3826879
I feel there's not. It's too easy for our genes to mingle and that keeps the planetary genepool stagnant. I have some faith in a unifying "awakening", but it's all dream we dream one afternoon is all.

here's a good pic

but guys, think about how many billions of years old our universe is, don't you think it's odd that there isn't a single civilisation that has visited us at ALL (supposedly)? Why did they decide not to explore us?

I honestly think that they had to visit us at some point during our ancient history at least, maybe they are just monitoring us now since there would be no practical need for them to actually land on earth now, but I think they did some time ago, it seems way too unlikely that NO civilisation did for billions of years...

>>3826591
Depending on how the universe is laid out, there may be an infinite amount of intelligent life forms out there. The problem is distance. According to what we know about physics, it's not really possible to travel the distance required to reach other intelligent life.

There are some ideas in physics, that suggest it could be possible (probably not though). However, we would then have to find them.

Honestly, it's just not going to happen. Hell, depending on the size/shape of the universe, there may be exact copies (possibly an infinite amount) of the visible part of our universe, complete with dopplegangers. So just remember, everytime you masturbate, there could be an infinite amount of you masturbating in unison. Also, there is likely an infinite amount of that have mustaches and are therefore evil, evil masturbating with you.

>>3827134

>Infinite amount of intelligent lifeforms

>wat.jpg

>>3827077
That's not unlikely at all. What's unlikely is us ever having been visited. There are over 50 billion planets in this galaxy alone. There are hundreds of billions of galaxies. What makes you think that an alien civilization would know that our planet exists, let alone take any interest in it?

>>3827144
I'll explain in brief. We don't know whether or not are universe goes on infinitely or not. If it goes on infinitely, then there will be an infinite number of life forms. (not different kinds, there will be a limit on that).

>>3827145
Assuming that they have the technology to find us and send probes..

>>3827169
I think it's well established that matter in the universe is expanding from the big bang. There is an edge to all of this. It is not infinite. The actual vacuum of space however, I do not know.

>>3827181
Your post shows your lack of knowledge about which you talk. I'll try to explain things, but your post shows just a large fundamental lack of understanding. I'm not entirely sure what you are misinterpreting.

There is a range that we cannot see past, because inflation works like an exponent. The further away thing are, the faster they separate from each other. That doesn't somehow mean there is no matter beyond the observable universe. We always assume that no one part of the universe is special. Why wouldn't there be matter out there?

>>3827181
You're also envisioning the big bang incorrectly. It was like something started expanding from a center point in already existing space, it is the space itself that is expanding. The stuff inside that space is expanding as a consequence of the space itself expanding.

>>3827171
They sent probes to over 50 billion planets in our galaxy alone...? Come on man... be realistic.

>>3827181
You're also envisioning the big bang incorrectly. It wasn't like something started expanding from a center point in already existing space, it is the space itself that is expanding. The stuff inside that space is expanding as a consequence of the space itself expanding.

Edited

>>3827207
>>3827207

The general idea to make something like this possible, is to make self replicating probes.

>>3827145
The thing is though that even with our own technology we can tell which planets have water, which planets are suitable for life, etc. There are not a lot of these at all, far fewer than 50 million! They may be in the thousands actually. So, assuming that there are civilisations far more advanced than our own, you would figure that at least one of them would visit us once, no?

I agree that there wouldn't be much of a point in visiting us though. Then again, I'm sure that when we are advanced enough to visit other planets with advanced life forms we might think the same way.

why do some astonomers doubt the existence of Gliese 581g?

>>3827221


> There are not a lot of these at all,

lol no, the Kepler ship alone has found 54 habitable zone (ones that could have water we cant see yet) planets out of 1,235 planets. That's still quite a large number, and kepler can't see the 100's of habitable moons orbiting the gas giants they've found in the goldilock zone.

>>3827221
So, so fucking ignorant.

First, we have barely found an planets at all outside of our solar system, period. They're extremely difficult for us to find.

You're also assuming making the fallacious assumption that if we could find other intelligent life, it would be even possible to travel there with any amount of technology. It doesn't look like it will be from what we know about physics.

Another thing, sure we get anothersingle from somewhere far away. Guess how long it took to reach us? Fucking thousand of millions of years. We find a planet with water? Well, we're not looking at the planet is as it is now, but what it looked like long ago, when the light first started traveling towards us from that planet. I think even a simpleton like you can figure out the implications of all of that.

But, but, but ancient aliens!

>>3827269
I did not mean to say that we haven't found any planets.

>>3827269
>First, we have barely found an planets at all outside of our solar system, period. They're extremely difficult for us to find.
W-what?

>>3826711

Any intelligent species presumably arose from the same basic principles of natural selection that we did. Therefore, they're pretty much guaranteed to be assholes just like us, maybe even worse.

>>3827269
>First, we have barely found an planets at all outside of our solar system, period. They're extremely difficult for us to find.
Difficult to find, yes. Barely found any? What the fuck?

http://en.wikipedia.org/wiki/Kepler_%28spacecraft%29
>On 2 February 2011, the Kepler team announced the results from the data of May to September 2009. They found 1235 planetary candidates circling 997 host stars, more than twice the number of currently known exoplanets. The Kepler results included 68 planetary candidates of Earth-like size and 54 planetary candidates in the habitable zone of their star. The team estimated that 5.4% of stars host Earth-size planet candidates and 17% of all stars have multiple planets. As the mission continues, additional longer period candidates continue to be found - as of September 2011, there were 1781 candidates.[15]

>>3827269
as a physics major i won't even dignify that comment with a response, my only suggestion is "use your imagination". try reading some books!

>>3827259
Yes, and there are also brown dwarfs that may host life, I'm not denying that there are a lot! I do take back my "thousands" comment though, however I do think millions might be stretching it (by the way, I should have mentioned that I was only mentioning this galaxy, not outside of it, since the technology to check every galaxy for life would be far too much).

Science will become more advanced and the number of planets that actually have life (as opposed to might have life) will dwindle down to such a number that we will be able to send tiny cameras travelling near the speed of light to these places and give us either video or other data to see what exactly is on these planets. I'm sure that alien civilisations have done this, it seems inconcievable that they haven't.

Sorry, English is not my first language.

Conscious life capable of civilization is very rare.

Humans are like a weird species of sea fungus or an extremophile, we're freaks and don't compose nearly as much of the biosphere as we seem to think we do. In fact statistically multicellular life is overdue for an extinction, the sun should have overheated by now, the core should have solidified exposing us to lethal radiation or one of many less likely things should have happened like being hit by an enormous comet or subject to a gamma ray burst.

I think it's pretty obvious the reason we haven't heard from other civilizations is because they are so far away, even if these civilizations surpassed their naturally evolved precursors and became extremely intelligent machines with highly efficient technology allowing them to build advanced economies on atmosphereless irradiated worlds then move on to the next solar system it will still take 100s of millions of years for them to reach us.

>>3827345
>the sun should have overheated by now, the core should have solidified exposing us to lethal radiation

>>3827345
But of course a Type III civilisations would be able to go anywhere it wanted to really, with wormholes. Then agian if they haven't yet over the billions of years the universe existed then this might prove that it's impossible for life to ever reach Type III status...

>>3827348

>>3827354
I suppose we need to factor in the possibility that we lack technology we may not even be capable of conceiving of yet.
>>3827348
>>3827378
The core is made of metal and consists of a solid inner core and a liquid outer core, the magnetic field of the earth is caused by convection of liquid metal in the outer core. As the earth slowly cools the solid inner core expands, eventually the outer core and thus the earth's magnetic field will be too weak to prevent enough of the sun's radiation from reaching the earth to allow complex multicellular life to exist.

>>3827394
Earth is at least a million years at LEAST away from losing its magnetic field. And when it does, we'll replace it with our own.

>implying more violent simians is a good thing

I dont think there is life any where else, we are it.

>>3827414

>mfw, yerp

>>3827414

>>3826591
> (and lets hope ANGRY SIMIAN guy doesn't show up again)

Who is that? Not me, surely, since I'd used the term VIOLENT SIMIAN. You don't even have to be *angry* to invoke violence. Your psychopathic corporate and political leadership do that all the time.

Personally, I think OP is a troll.

Yeah the idea fascinates me too but I just can't indulge in asspulling of this magnitude without feeling bad about it

I don't think "aliens" would ever be extraterrestrial and if they were they would not arrive here through regular interstellar travel as commonly envisioned.

It's quite obvious from a current standpoint that slinging something at a star in a pressurized tube is not feasible, but a method like a "wormhole" where lightyears could be traveled in an instant (or a relative instant) seems far more likely.

Life on other planets? Seems reasonable to think that it may very well be a lot.
Intelligent life? Rarely.
Technological civilization? Once in a blue moon.
Surviving spacefaring civlization? Almost never.

If we survive and colonize space we'll probably be the unofficial champions of the galaxy, (or at least in the top three or something). Doesn't look very likely, but one can hope.

Now you like biology don't you motherfuckers

Hey guys... if the end of the universe is supposed to be heat death due to expansion. Why don't we just shrink the universe down again?

>radio signals being the fastest means of communication
>we can't contact any other civilization before we destroy ourselves
>nobody mentions spooky action in the distance
mfw

>mfw we discover another civilization in universe and after we get to their planet we realize they dont exist anymore

But what are the odds of a real life version of Equestria?

>>3828065
100%

MLP is a documentary.

>>3828046

holy fuck, that's depressing

>>3828046

>yfw their star wars defence system activates and destroys the probe that investigated it

>>3828095

what

>>3827922

You do it first.

>>3829052
>sage

well, basic life is fairly easy to form

amino- and nucleineacids form rather easy naturally if there's enough carbon (and carbon is extremely common compared to most elements) and the polymerisation has numerous common naturally occurring catalysts

and we know that RNA can take on the information storage, catalysis and transport all on its own and we have found that phospholipids use nucleineacids as a catalyst to create membranes with a natural selfrepairing factor

and once you got an RNA like molecule inside a membrane the step to life is not that huge

So I'm fairly confident microscopic life is widespread throughout the universe

the problem is that we don't know just how rare some of the great leaps of evolution are; water based photosynthesis with the resulting cellbreath, cellnucleï, altruism, multicellularity, sexual reproduction etc etc

if they are all just one in a billion chances, the universe might be rather empty when looking for intelligent life

Multicellular life is bound to happen if favorable conditions exist for billions of years, that's just how it works. It becomes a parasite, the parasite of life and the ONLY mission life has is to not die.

>>3829156
Multicellular life is bound to happen if favorable conditions exist for billions of years, that's just how it works. It becomes a parasite, the parasite of life and the ONLY mission life has is to not die.

>>3829580
that is not necessarily true

if the step off the cellnucleï and altruism is not taken it most likely will never evolve

>>3829156
ever done it? no?

anyone else ever done it? no?

stay classy, /sci/