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SETI@Home Revisits Its 100 Best Signals
cmbrothe writes "The Planetary Society is running an article about SETI@Home's plan to revisit its 100 most promising signal candidates. The article also outlines the criteria for selecting the candidates."
the signal must sound like a humpback whale...
Is that the REAL signals will obviously be coming from starships in nearby space which have either warp/hyperdrive and will therefore be NOWHERE near where they were when the signal was first detectred months or years ago.
lysergically yours
score= N*(bv-bv0)*exp(0.5*(bv-bv_sun)^2)/(par+0.01)^3
where
N is a normalizing factor, 1.65x10^7
bv is b-v color
bv0 is b-v color of the bluest star in the catalog (-0.41)
bv_sun is the b-v color of the sun (+0.65)
par is the parallax in milliarcseconds
How exactly do you test the validity of a formula like this?
I mean, with the amount of planets out there, I'm sure there's a whole lot of life and a lot of intelligent life. It's just that we hope to find one other intelligent race and people aren't even thinking about finding more than that.
-Lucas
"Ah, a signal. Quick, beam a signal back, and...uh...wait 30,000,000 years for a reply! Cool!"
sounds like your typical tech. support query.
Wasn't that telescope destroyed in Goldeneye? How are they still using it?
Lasers Controlled Games!
If they've done any research to correlate the number of possible signals to the frequency of radio broadcasts featuring Michael Jackson...just a thought, I mean, they are looking for aliens...
Just for fun, I googled the 1977 "Wow" signal mentioned in the article and every so often in SETI news. Found this good BBC article on the subject.
This blatant karma whoring is brought to you by the letters "ET".
Never approach a vast undertaking with a half-vast plan.
Obligatory comments here...
Did I miss any?
LongTail SSH Brute Force analysis tool is here!
Consider the past efforts at Arecibo to send a message to other stars. We focused on one star for a couple of hours, and sent a message. Perhaps we repeated it over the course of a few days.
Now, let us suppose that a civilization with a similar technology to ours was located on a planet around Proxima Centauri, and let us suppose they did exactly as we did in our transmissions at Arecibo. Would that signal have been found by SETI@Home?
Given how the SETI receivers might not have been looking in the right places at the right times to see more than one transmission, might that signal have been discarded because we did not see more than one instance of it?
www.eFax.com are spammers
Who says two way communication is the only way we can take advantage of the finding? If they're more advanced than us at the time in their history when the signal was sent out into the cosmos, we'll learn a lot just by listening.
Imagine if 50 years ago, they could watch our current TV programs, listen to our current radio broadcasts, read the internet.
Hell, even if we don't advance because they're at the level we were at in the 20s, a LOT would change because aliens would be FACT instead of FICTION.
-Lucas
I can't believe that people are still looking for signs of extraterrestrial intelligence, hooing to make contact one day.
Stanislaw Lem once described the window of contact as the tiny amount of time in a planet's life that an intelligent life form has to evolve far enough to create enough noise around their planet that will be picked up as non-static background noise, until its civilisation dies the entroy death.
Even if we picked up something now, it would only be a tiny flicker of something that existed millions of years ago, with no hope of us ever meeting whoever created this glimpse of order in the chaos of the universe.
We are alone out there. Confined by the same rules that hold our universe together into a tiny section of space and time. The best we can hope for is to become nomads, travelling to near systems in the hope of making them inhabitable when this sun gives out. If we haven't fallen into the ashes until then.
A cover of "Peppermint Twist" recieved from a point near Epsilon Eridani, played on what sounds like oil drums and unlubricated condoms using a 68-tone scale. Great beat and you can dance to it if you have five legs.
Life is like surrealism: if you have to have it explained to you, you can't afford it.
I'm not talking about all the regular satellite communications. Are we intentionally broadcasting any messages for the universe at large?
And would regular satellite communications appear barycentric? It doesn't sound like it. So, if we're not broadcasting barycentric signals, why would we expect other lifeforms to broadcast them? Or are we braodcasting something barycentric? Can I tune in?
i understand the 100% scientific approach to weeding out certain stars that have not been around that long:
When it comes to scoring signals, however, not all stars are equal. This is because, according to SETI wisdom, some stars are more likely to host a communicating alien civilization than others. Thus, for example, only main-sequence stars are considered for signal-scoring purposes, excluding red giants and white dwarfs. Short-lived stars, whose lifespan is only a few million years, are also excluded from consideration, since complex life would not have had time to evolve in such an environment. Nearby stars, on the other hand, get "extra credit" in their scoring, since it would be comparatively easier to communicate with civilizations in our galactic neighborhood than with those in distant parts of our galaxy or beyond. Finally, the more similar a star is to our own Sun, the higher its score, since it would be more likely to host a civilization similar to ours.
and maybe this sounds really really stupid and like i should stop watching star trek - but i don't actually watch it! but surely a far advanced alien race could be migratory and move to one of these less advanced planets. like maybe for the sunshine?
Sure, the astrometry (positions) in Hipparcos are better than in Tycho 2, and Hipparcos contains more information about the stars than Tycho 2 (e.g. variability), but still. I would in fact think that Tycho 2 would be better for SETI than Hipparcos, but they may have their reasons.
Employee of Inrupt, Project Release Manager and Community Manager for Solid
Unless they had time travel. And encoded the instructions to build the time travel device in the radio wave. Then we could build it, go back in time, and respond before they even sent the first message. Of course then they would have never sent the instructions in the firrst place....
*sound of head exploding*
Indeed, who needs billions of bogomips of processing when you have a deaf guy and a lesbian to notice the one signal that really matters. Wait, wasn't there a token black guy as well? And do we need a golden haired child, or was that the lesbian as a kid? Oh god, I can't remember! It's hopeless, I tell you, hopeless, there are too many variables.
If you were blocking sigs, you wouldn't have to read this.
Sure, if the SETI project gave conclusive proof that there was alien life, It would be a day that would go down in history.
But, it has to be rock solid proof. Not just a signal, we need a communication from another world. Otherwise CNN will have someone on there within the hour making up 50 other possibilities for the signal.
--ST
http://www.theMediaBunker.com
Better still, what if the aliens have figured out how to upload your mind out of your meat body and into something more permanent.
We could all become IMMORTAL. Bwa ha. Bwa haha. Bwahahahahah!
Joking aside, contacting aliens would be a much more significant event than curing cancer. We already have a more than effective way to replenish the population on this planet.
Very noble of you. Among other things, I have spent my own time, not my computer's, working on cures for cancer. (Right now I'm back at school.) I could have been earning much better money pushing paper--actually, I took a 25% pay cut to do cancer research.
You know what? I was running SETI@Home on my computer at the time. And I don't feel guilty about it. Maybe there was a better use for those cycles, but I think of it as a sort of hobby for my computer. People who spend their spare time watching football, or playing with electric trains, or painting--forget what their computers are doing, shouldn't they be working on 'more relevant' problems?
Breast cancer killed my best friend's mother this summer. I would love to see a cure for cancer, as well as for any number of other diseases--Alzheimer's runs in my family, and my uncle has diabetes. But if fear of death is to set all of our priorities, leaving no room for a sense of wonder and exploration--what's the point of living?
If you really want to help people in a tangible way, please--go out and give blood. Not just after a terrorist attack, but every two months. Or volunteer at a food bank. Not just at Thanksgiving, or Christmas, but year round. Write a cheque to a charitable organization. If you can't afford that, write a letter to your government representative--tell them what their funding priorities should be.
~Idarubicin
There are two things I'd really like to take a look at, and I'm sure I'm not the only one.
First, there is a program that can convert the work unit files into a wav file. I think it would be pretty cool to listen to some of these top 100 signals. I've played with the program on quite a few work units and never been able to hear anything but static. As strong as the top 100 signals are, you should actually be able to hear something.
Second, there are a few places on seti's and related sites that show a picture of what a good signal looks like. Why don't they take a grad student and make him run through the top 100 signals and record what the graphics look like when it is processed?
I've actually emailed them before and requested both of these. I've never gotten a response nor have they posted either. If they have, then I've just missed it.
If I drive fast enough at the red light, it'll appear green.
100 Best Singles!... Thats what i'm Talking about!.. 100 hot alien singles with hot alien bod's and hot.... uh... oh.... signals.... dang..
never mind....
"just another ugly toad waiting for a kiss from a princess"
So we little green aliens go to all the trouble to put the
transmitter far away from any other radio sources (like stars
and galaxies) - we shift the frequency to compensate for the
orbit of your planet around your sun - we listen to your
transmissions and send ours back on channels we know you
must be listening to - and we get modded down for all of
those things? Damn!
So what DO we have to do to get more Karma at Seti?
www.sjbaker.org
Actually, I was thinking that SETI@Home should not only "revisit its 100 most promising signal candidates" but burn them onto a CD-ROM set and make a deal with the record company whose name is synonomous with compilations, K-Tel, to sell them. The perfect gift for the geek who has everything...
GMD
watch this
Dear Sir/Madam/Globunsk/Srhamel/Goot:
:)
I'm the ruler of Andromeda-3, an M Class Planet in the constellation of Andromeda. My father, the fifth ruler in the Pfthoskkkrkfhhdfkfk dinasty has been robbed. If you could lend me your intergalactic bank account so I can transfer my funds to Alpha Centauri...
The interesting part about attitudes towards SETI is what they say about our own future. What is happening with our civilization? Where will we be in 100 years? In 1000?
Many people are pessimistic. They think we're bad and getting worse. They expect that we will destroy ourselves soon, or sink into a dark age, or otherwise lose the ability to communicate with the stars. So they can imagine a galaxy full of life but not much of it communicating at any given time.
But let's suppose that things continue on as they have. Look at the grand sweep of human history. We see a continual growth of capability and power. Even a poor person today in the West has technology which would have been unavailable to the richest person in the world 100 years ago.
Imagine that this continues to happen. Technology not only advances, it speeds up. The next 100 years bring more changes than the last 1000 years. Nanotechnology, biotech, AI, physics advances; we could be living like gods in 100 years.
And let's assume that social trends continue. Racism and sexism was ubiquitous 100 years ago. Now they are recognized as great evils. As our power grows and our moral sensitivity increases, we will want to help those less fortunate than ourselves. We will end poverty and suffering among humans, because it will be easy compared to the power we have. We will turn to the higher animals, and do what we can to improve their lives as well.
And we will turn outwards. We will reach out into the galaxy with communications and explorations. It will take centuries, millennia, but as our capabilities grow we will eventually find even the great interstellar distances easy to cross. We will search the galaxy for life, ready to cherish and protect anything that we find. And if we could meet a culture less advanced than our own, we would do what we could to ease their suffering while still respecting their chosen path.
This may seem like an absurdly optimistic vision, but it's nothing different from what has happened in the past! Anyone who looks with clear eyes at the record of human history and who extrapolates it forward should see this as a very plausible and likely future path. The reason that it's not explored much in literature is because there aren't that many dramatic possibilities in a world which is as much improved over the present as our own world is over the past.
The point is that if this is the likely path for a civilization, it would suggest that other cultures in the galaxy would also be spreading outward and would probably be here by now. The fact that we don't see them, that we stumble along and still suffer great and preventable catastrophes, suggests that really life is not so prevalant in the galaxy after all.
So ironically, both the optimistic and the pessimistic view of humanity's future suggest that SETI won't work. The pessimists believe that any advanced culture will wipe itself out; and the optimists believe that such a civilization will spread through the galaxy and render aid to less developed worlds. Either way we won't find intelligent signals on our expensive radio telescopes.
What are the odds of a random collision of atoms of a certain solar system producing life?
What are the odds of a random string of radio signals mimicking life?
If B>A, we have some problems.
Imagine some alien RIAA-like organization finds out about this SETI project that distributes their valuable inter-universal IP-protected radio signals to thousands of computers all over a damn whole planet!
Hopefully there's just a flat yearly fee we're allowed to pay to the broadcasters...
Their lawyers will go nuts if they ever find out.
42. Easy. What is 32 + 8 + 2?