Are Observed Radio Bursts An Alien Propulsion Technology?

Harvard astrophysicists wonder if it could be worth examining a set of fast radio bursts to see if it could be evidence of an alien propulsion technology.


(Artist concept of alien sails and propulsion)

"Fast radio bursts are exceedingly bright given their short duration and origin at great distances, and we haven't identified a possible natural source with any confidence," said theorist Avi Loeb of the Harvard-Smithsonian Center for Astrophysics. "An artificial origin is worth contemplating and checking."

As the name implies, fast radio bursts are millisecond-long flashes of radio emission. First discovered in 2007, fewer than two dozen have been detected by gigantic radio telescopes like the Parkes Observatory in Australia or the Arecibo Observatory in Puerto Rico. They are inferred to originate from distant galaxies, billions of light-years away.

Loeb and his co-author Manasvi Lingam (Harvard University) examined the feasibility of creating a radio transmitter strong enough for it to be detectable across such immense distances. They found that, if the transmitter were solar powered, the sunlight falling on an area of a planet twice the size of the Earth would be enough to generate the needed energy. Such a vast construction project is well beyond our technology, but within the realm of possibility according to the laws of physics.

Lingam and Loeb also considered whether such a transmitter would be viable from an engineering perspective, or whether the tremendous energies involved would melt any underlying structure. Again, they found that a water-cooled device twice the size of Earth could withstand the heat.

I don't know about alien civilizations, but on this planet this idea has a relatively brief history (with a surprising outlier). In a 1962 book by Dr. Robert Forward titled Report on Laser Design Study, we find "results of the design analysis indicate the feasibility of proceeding with the construction of a LASER cannon system at once." This idea was used creatively in the 1974 Niven/Pournelle classic Mote in God's Eye:

"Captain, look," he said, and threw a plot of the local stellar region on the screen. "The intruder came from here. Whoever launched it fired a laser cannon, or a set of laser cannon - probably a whole mess of them on asteroids, with mirrors to focus them - for about forty-five years, so the intruder would have a beam to travel on. The beam and the intruder both came straight in from the Mote.

See the entry for laser cannon from Niven and Pournelle's novel.

However, this is not the earliest instance of this idea. Golden Age science fiction great Edmond Hamilton wrote about ships propelled by light pressure in his 1929 story The Comet Doom.


(Light cones for light propulsion)

Via Harvard Center for Astrophysics.

Scroll down for more stories in the same category. (Story submitted 3/16/2017)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Space Tech ")

Can Musk Starship Astronauts Use Magnetic Boots?
'Walking awkwardly in the magnetic boots that held him to the black mass of meteoric iron...'

Giant Dolphin Spotted On Jupiter!
'Now at last he could appreciate its real size and complexity...'

Musk's Starship An SF Fan's Dream Come True
Perfect for testing, perfect for fans!

WINE Spacecraft To Extract Water From Asteroids
'Yes, strangely enough there was still sufficient water beneath the surface of Vesta.' - Raymond Z. Gallun, 1951.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Purdue Pharma Ready To Profit From OxyContin Use Or Addiction Recovery
'It may be organic damage. It may be permanent. Time'll tell, and only after you are off Substance D for a long while.'

BloxVox Mutes Cellphone Convos
It's the polite thing to do, and has been the polite thing to do for about four generations.

Superfast Replicator: Volumetric Additive Manufacturing
I can't wait. Bring it on.

DNA May Contain Malware
'You were told to embed the logical pathogen.'

I Can't Resist Worm Robots
'Seen close it was not completely flexible...'

Rplate Digital License Plates Now Legal In Michigan
'Gragg's digital ink license plates ...'

Can Musk Starship Astronauts Use Magnetic Boots?
'Walking awkwardly in the magnetic boots that held him to the black mass of meteoric iron...'

Giant Dolphin Spotted On Jupiter!
'Now at last he could appreciate its real size and complexity...'

Musk's Starship An SF Fan's Dream Come True
Perfect for testing, perfect for fans!

TinyMobileRobots Are Sewer Sentinels
Every movie monster gets its start someplace.

Fishy Facial Recognition Now Possible
'Palenkis can identify random line patterns better than any other species in the universe.'

Spicy Tomatoes Created With Genetic Engineering
How about mashed potatoes and brown gravy?

Driverless Hotel Rooms Predicted In 1828
'Did you never see a moving house before?'

Yandex Self-Driving Taxi Is Very Smooth
'The big car was slowing down, its computer brain sensing an exit ahead.'

Shrimp Actually Made Of Algae Is A New Wave Food
Bring in that crop algae.

Cosplay Style Wings Could Work On Moon
'They're lovely! - titanalloy struts as light and strong as bird-bones...'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.