HD 164595 (G-type star) with HD 164595 b (orbiting planet). Where the apparent signal has originated from. (From CNN.com All credit due)
One should be mindful of extreme skepticism which can lead to a complete dismissal, without properly investigating, a perfect example of this was the Tabby’s Star ( KIC 8462852) over-hyped dismal in relation to the drop in illumination over an extended period of time. With all natural possibilities at this point in time abandoned, Tabby’s Star is still an outright mystery. Investigating a possible abnormality that is not naturally occurring should be a continuous project with all data to be studied and analyzed. Of course this does occur, but within the current hysteria and backlash politics in our modern interconnected world and social/new media paradigm. One side, in real-time, reacts against the other without much thought, in this case; it would be the aliens are trying to contact us ‘crowd’ i.e conspiracy theorist, who want it to be an ET signal – believing everything is a cover up. The skeptics, and rightly so, need more evidence. With the Extraterrestrial hypothesis last on the list. In the middle, from a speculative perspective, a rash dynamic can occur from both sides.
So what have got? Nothing concrete as such, but a re-run of the famous “Wow” signal that was received in 1977. Since re-looking at possible reasons (natural) of that famous radio signal. The space-junk and comet theory have been dismissed. It still remains a mystery.
Now we have a new mysterious signal:
From New Scientist :
Jumping to conclusions?
Although it’s fun to speculate, it’s far more likely that the signal isn’t an extraterrestrial beacon at all, but actually earthly interference. Radio telescopes have been known to pick up rogue signals – everything from flushing toilets to cell phones. Just last year, astronomers at the Parkes Radio Telescope in Australia traced a mysterious type of radio signal to two on-site microwave ovens.
“In SETI part of the problem is that you have a civilisation that is producing signals that can mess you up all the time – and that civilisation is called humanity,” Shostak says.
So before astronomers jump to any conclusion, they’re attempting to detect the signal again. Last night, the SETI Institute used the Allen Telescope Array in northern California to track the star. They saw nothing, but will observe again tonight.
That lack of detection doesn’t close the book on an extraterrestrial civilisation just yet. “You can’t say because you didn’t find something that there’s nothing there,” Shostak says. “Say Captain Cook sailed around all day in the South Pacific and he didn’t find any new islands. That doesn’t prove that there are no new islands, it just proves that he didn’t find any that day.”
A civilisation might also try to send signals at multiple frequencies, says Douglas Vakoch, the president of METI International, a group that wants to send messages to ET as well as detect their signals. Perhaps last night, they simply weren’t broadcasting at the same frequency we initially detected.
“…We can speculate as much as we want about whether there’s intelligence out there in the cosmos, but unless we find something interesting and do a rigorous follow-up, we’ll never know.”
Also please note my ebook Nireus (Amazon) written in 2015, where a fictional signal came from exoplanet HD40307g
Further study of locale exoplanets their stars refer: