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Comets can't explain 'alien structure' star


Posted on Sunday, 17 January, 2016 | Comment icon 338 comments

The cause of the anomalous readings continue to remain a mystery. Image Credit: NASA / Rick Guidice
An astronomical anomaly thought by some to be an 'alien megastructure' has continued to defy explanation.
Originally picked up between the constellations Cygnus and Lyra by the Kepler Space Telescope in 2009, the star known as KIC 8462852 has long proven something of an enigma to astronomers.

Unlike most other planet-hosting stars which exhibit slight periodic dips when their planets pass in front of them, this one seemed to be exhibiting extremely erratic dips indicative of a large, tightly packed assortment of matter in orbit around it.

Back in October, astronomer Jason Wright suggested that this could indicate the presence of a 'megastructure' in space - one built by an advanced alien civilization - an idea that had been previously put forward by SETI in relation to its hunt for signs of intelligent extraterrestrials.

Later reports attempted to play down this idea by suggesting that the anomaly was instead a cloud of comets in orbit around KIC 8462852, but now a renewed research effort has discovered that the star had actually been dimming gradually for over a century - a fact which seems to discount the comet theory and leaves astronomers once again scratching their heads.

"The comet-family idea was reasonably put forth as the best of the proposals, even while acknowledging that they all were a poor lot," said astrophysicist Bradley Schaefer.

"But now we have a refutation of the idea, and indeed, of all published ideas."

Source: New Scientist | Comments (338)

Tags: Star, Extraterrestrial, Megastructure

Recent comments on this story
Comment icon #329 Posted by Toxic Behavior on 10 June, 2017, 1:22
Yh I see this on a TV program.. Very thought provoking indeed. You can really get lost in the possibilities that is probably out there. And some doughnut thinks we could be alone? Hahaha
Comment icon #330 Posted by lost_shaman on 10 June, 2017, 9:29
doughnut! Ha!  
Comment icon #331 Posted by TripGun on 13 June, 2017, 15:54
I think Mr. Scott was stuck in a transporter loop on the surface of this Dyson sphere, apparently crashing his shuttle while solving the enigma of Doc Browns flux capacitor causing Parkinsons. This temporarily pulsed the plasma output and resulted in an out of phase time fractal and the lights at Grandmas house blinked twice.
Comment icon #332 Posted by bison on 18 June, 2017, 20:19
KIC 8462852 began dimming again several days ago, reaching a level of nearly minus 2 percent. The dimmed state continues at this time. Together with the similarly-sized dip in light output in May, these may indicate larger dips to come. This is how the star has sometimes behaved in the past.  We have a tentative evaluation of the character of the light from the star, when it dims. This indicates that it appears slightly dimmer in the shorter wavelengths, but not enough to be due to dusty debris in that star system. More precise determinations should be possible, when a larger dip occurs.    
Comment icon #333 Posted by NotAlien7 on 24 June, 2017, 2:04
Have scientists considered that a portion of the light from this star could be manipulated in a scientific effort to bend light?
Comment icon #334 Posted by Merc14 on 24 June, 2017, 2:14
Of course not.
Comment icon #335 Posted by Silent Trinity on 28 June, 2017, 10:52
Certainly a tantalizing and thought provoking observation, but given the distance involved and the current penchant for exploration of space being accomplished in our generation by nothing more than long range fuzzy telescopes and light dimming observations, I think this one will be speculated on and never truly solved alas
Comment icon #336 Posted by Emma_Acid on 5 July, 2017, 11:08
I can bend light with a glass of water. I don't need a megastructure to do it.
Comment icon #337 Posted by Noteverythingisaconspiracy on 5 July, 2017, 11:18
I can do it with a mirror or fibre optic cable. We must be advanced aliens then ?
Comment icon #338 Posted by NotAlien7 on 9 July, 2017, 23:47
That would be a small portion of the sun indeed. But what about a large portion of the sun? If more sun could be reflected away from our world and directed toward mars we might be slapping two birds with one stone. On the science fiction side if a large portion of sunlight could be redirected from a strategic area of space it might play havoc with a enemies navigation systems. If you could direct a larger portion of light in a way where it would be noticed by someone you might be sending a big HELP signal.


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