The “Wow!” Sign may have been an energy leak from the ET spacecraft The Wow! still confuses scientists.

 The “Wow!” Sign may have been an energy leak from the ET spacecraft The Wow! still confuses scientists.

 By Paul Seaburn 

www.newscientist.com


The Wow! owes its name to the exclamation written on a paper print from the Ohio State's Big Ear Radio Telescope in 1972 that was evidence of a strange 72-second signal that impressed astronomer Jerry Ehman. The signal had lasting fame due to the fact that it was never explained and was never picked up again.

 A recent article claimed to have traced the signal to the 2MASS star 19281982-2640123 in the Sagittarius constellation 1,800 light years from Earth, but it is still a theory. Now, another astronomer has proposed to have identified the Wow Sign! like leaking a beam of energy that propelled an extraterrestrial ship. Is it time to drop the microphone and shout "Wow!"? 

 “The most observable radiation leak from an advanced civilization may well be the use of energy beams to accelerate the spacecraft and transfer energy. The energy bundles are now more reliable because we are building our own: the Starshot project plans to launch probes for nearby stars in this century, making the energy bundle a reliable source concept. And power transmission is being developed for military applications, where it’s called ‘targeted energy’. ” James Benford, plasma physicist and CEO of Microwave Sciences, summarizes the article he presented to the journal Astrobiology in Centauri Dreams. He compares the Wow Sign! to the powerful laser beams being proposed to power laser candles for nearby stars and for the "directed energy" weapons being developed by the military to attack and destroy without explosives. In his summary, Benford proposes that the leak - energy that does not directly reach the driven object - can be powerful enough to be seen by other intelligent species nearby and shows how this would explain the four parameters of the Wow Sign! - the received power density, the duration of the signal, its frequency and its review time. The last parameter is the interval until the signal is seen again and Benford explains that it is the least discussed, but possibly the strongest argument for the energy beam leak.

The “Wow!” Sign may have been an energy leak from the ET spacecraft The DEEP laser sail concept is based on a large array of laser beams that accelerates and accelerates a spacecraft of relatively large area and low mass. This has the potential to accelerate non-living objects to speeds that approach the speed of light, enabling an interstellar journey in a single human life “Wow! never repeated. I take this absence as a clue to its origin. ” The leakage of a high power beam highly directed around the vehicle would still be powerful, explaining parameter 

1) The Big Ear was fixed in the orientation, rotating with the Earth, and the duration of the Wow! - 38 seconds - corresponded to the duration of a model of an energy beam from another star system - 36 seconds, explaining parameter 

2) The Wow Sign! it was in the frequency of 1.42 GHz, a bandwidth protected from radio astronomy, so it could not be a transmission from Earth or its satellites - parameter 

3) Finally, there is the recurrence factor. “The angle of the beam irradiated in relation to the path of light between the two stars is greater than the width of the beam. Thus, the beam is generally not observable from the target planetary system".

"If Wow! was conducting a probe for a star, that star was at that moment far from the direction of the beam. The Earth may accidentally receive the beam leak, as the stars move in relation to each other. Thus, the leakage radiation from the stellar probe launched using the Wow! will not be seen again from Earth. This fits in with the non-observations so far. ” 

Wow!! Benford concludes that energy beams are the most reliable explanation for Wow! because we are building ours, thus proving that they can exist. 

He also builds a case to treat SETI as a search for these random energy beams rather than communication signals - a case that will be much more compelling from astronomy and SETI worlds focused on these types of signals. This is no time to drop the microphone - but James Benford definitely builds a case to throw the microphone in the air or spin it on its cable (for fans of a certain age).

Credit:www.ovnihoje.com

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