January 15, 2019
The News is All About Hamburgers and Overpriced Razors So Here's Some Space Stuff
One of The Brickmuppet's Crack Team of Science Babes brings us the latest developments the search for extraterrestrial intelligence...
"My new favorite word is Technosignature."
The short video is a good quick overview of SETI issues. However, Mr. Cain also links to the referenced NASA report as well as the recent SETI conference minutes, which can provide hours of amusement.
In other SPACE news, while we wait for high resolution pictures from Ultima Thule NASA is providing some visual perspective on the matter.
(We should see some high rez pictures in about two weeks or so.)
Posted by: The Brickmuppet at
09:31 PM
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A long time ago I was running Seti@Home as a screen saver. (I tried the newer one a year or so ago and nearly fried my computer!). When I read the description of what they were looking for, the frequencies they were checking didn't really make sense. They weren't searching for emissions in the band where there was the least interstellar noise, but around some natural frequency of some element (I forget which). It might have made some kind of symbolic mathematical sense, but there was no practical reason why aliens would USE that particular frequency band.
"Why of course anyone trying to communicate between the stars would use a harmonic of the Hydrogen resonance!"
"Really, I'd try the frequency most likely to get through."
*Gets pitched out the window.*
"Why of course anyone trying to communicate between the stars would use a harmonic of the Hydrogen resonance!"
"Really, I'd try the frequency most likely to get through."
*Gets pitched out the window.*
Posted by: Mauser at Wed Jan 16 00:42:01 2019 (Ix1l6)
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Mauser, they look in the so-called hydrogen window because the other frequencies get absorbed by the interstellar medium (which is mostly diffuse hydrogen). If anyone were broadcasting on other frequencies, we wouldn't be able to detect it from a significant distance, in interstellar terms.
There's a degree of looking under the street lamp for your keys issue with that, of course, but we don't have much choice in the matter.
There's a degree of looking under the street lamp for your keys issue with that, of course, but we don't have much choice in the matter.
Posted by: Directrix Gazer at Wed Jan 16 15:21:11 2019 (QpQY7)
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