Questions tagged [seti]

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3
votes
1answer
86 views

Current best-known Drake Equation values?

Frank Drake's equation is used to estimate $N$ the number of civilizations we might be able to communicate with in our galaxy: $$N = R_\star f_p n_e f_l f_i f_c L$$ where: $R_\star$ is the average ...
6
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1answer
50 views

Is the SETI's `needle-sharp at 982.002 megahertz` signal accessible?

In April-May 2019, the Parkes radio telescope, in Australia, received a weird signal while surveying Proxima Centauri. Is this signal available, ideally in some digitalized form? Where could I ...
2
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2answers
103 views

How to communicate Fine Structure Constant to aliens? [closed]

Sorry if this is not the right question for this channel, I just need to know and there is no good place to ask. It is said the Fine Structure Constant α is one of the most fundamental constants in ...
2
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1answer
98 views

What are the prime challenges in search for extraterrestrial intelligence? [closed]

What have we been able to accomplish so far and what are the prime obstacles that block our sight? My understanding is that Radio Telescopes are the prime tool for the search. I wonder what kind of ...
5
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1answer
113 views

Is the pulsar map on the Pioneer/Voyager probes only meaningful for earthlings?

The Pioneer probes brought plaques (and later the Voyagers two golden discs) with a "pulsar map" imprinted on them. The purpose of the map is to make the position of the Sun clear for an ...
5
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1answer
156 views

How accurately could late 50s - early 60s humans have mapped the solar system?

What if early SETI investigations had focused on our own solar system, rather than distant stars? Given the technology that existed around the 1950s, how much surveillance would humanity be able to do?...
2
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1answer
57 views

Why is the SETI survey limited to only Red Dwarf Stars?

I was going through the official SETI website, when I came across this article on the same website which said : Today, the SETI Institute uses a specially designed instrument for its SETI efforts – ...
2
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1answer
29 views

Can concentration of gas in exoplanet atmosphere be found out from wavelength and absorbing radius from spectral data?

I was working on exoplanet spectral data from which I need to infer the concentration of gases. However, the exoplanet spectroscopy data contains only absorption wavelength and absorption radius. Is ...
1
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0answers
18 views

Have non-periodic radio signals been analyzed for shannon entropy or put on a Zipf plot?

If aliens did exist, they would probably compress their communications. And they might use a fault tolerant infrastructure like TCP/IP. In either scenario, real communications would not be periodic ...
1
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1answer
91 views

Did comets 266P/Christensen or P/2008 Y2 (Gibbs) cause the Wow! signal?

Continuing my fascination with the Wow! signal, I stumbled upon an article from 2016 titled Famous Wow! signal might have been from comets, not aliens. It describes the hypothesis that the signal ...
4
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0answers
40 views

Is all of the data from the same program that found the Wow!-signal analyzed?

I just read on Wikipedia that... By 1977, Ehman was working at the SETI project as a volunteer; his job involved analyzing by hand large amounts of data processed by an IBM 1130 computer and ...
5
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1answer
129 views

Gamma ray detection for SETI. How far away could we detect an alien nuclear powered rocket?

I suspect our best bet for finding advanced civilisations is to look for gamma rays characteristic of nuclear/antimatter propulsion. If an alien civilisation was using something similar to the Orion ...
3
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1answer
201 views

Have we sent radio signals to exoplanets that may be habitable?

I would like to know please whether or not we have sent radio signals to exoplanets that may be habitable. Thanks in advance !
4
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1answer
102 views

WOW! signal calculation of point source intensity

The WOW! signal's measurement took the average signal strength over 12-second intervals. The average intensity's peak was just over 30-1 signal to noise, meaning that the 12 second interval had an ...
-1
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1answer
154 views

Can I pick up alien radio signals from my backyard? [closed]

I would like to know please whether or not I can pick up alien radio signals from my backyard.
2
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1answer
104 views

UK groups that investigate extraterrestrial life

What are some UK based groups that research astrobiology, especially the chance of extraterrestrial intelligence?
1
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1answer
91 views

Astronomy online degrees

I have a masters degree in computer science and statistics but would like to advance my knowledge in astronomy, ideally in getting some kind of online degree. Does anybody have experience, ...
0
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0answers
95 views

What activities of human beings can be detected by aliens 1000 pc away? [duplicate]

Let's suppose they have similar technical level like us now. In radio band, what is our earth like? What signals can be linked to non-natural behaviour? How about optical band and other methods? ...
1
vote
1answer
163 views

What (actually) does “peculiar periodic spectral modulations” refer to in this preprint?

I saw this ArXiv preprint after reading about it in the popular media. I can not even understand the beginning of the introduction (much less the whole paper): INTRODUCTION A Fourier transform ...
1
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0answers
92 views

What are the steps I have to follow to join SETI programe from my location (India)?

I just want to know if I can be part of SETI project. I have gone through SETI website but still didn't get enough guidance. Apart from installing boinc software for letting my machine used as part of ...
5
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1answer
181 views

What was the nature of the signal received from the direction of HD164595?

There's been a story in the news recently of a potential SETI candidate signal received from the vicinity of star HD164595. What's the nature of this signal? Is it a single pulse of energy, or does ...