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 ")

Yes, But Do Astrobees Have Lasers For Lightsaber Training?
'... Ancient weapons are no match for a good blaster at your side, kid.' - George Lucas, 1977.

Japan Uses Explosives On Asteroid
'...a tiny, rocket-powered projectile, drove towards the mysterious bulk. It hit, exploding into a cloud of incandescent vapour.' - EC Tubb, 1958.

Johns Hopkins Says Asteroid Deflection Will Be Difficult
'This obelisk is one huge deflector mechanism...' - Gene Roddenberry, 1968.

Hayabusa 2 To Begin Asteroid Mining
'We must dig down, and then doubtless we shall find the metal.' - Garrett P. Serviss, 1898.

 

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

Can We Comprehend Deep Learning Systems?
'Youíve nothing remotely like it, so I canít describe it to you.'

Skin Electronics Can Show Electrocardiogram
'... the young men in the streets who applied polyimde OLED body film to their bared shoulders.'

Chinese Fern Helps Remediate Arsenic Soil
'Bioengeering had put out a spec report on the long crawly things five months back.'

Skai Air Taxi Costs The Same As Uber
'The air-taxi found its way past and around other ground-cars...'

Neurodevices For Consumers? Neuroethicists (And Philip K Dick) Say 'Caveat Emptor'
'They tried to use it today and it wouldn't work. No colors and no ceph patterns, neither one...'

NASA 3D Printed Habitat Challenge Won By AI SpaceFactory
3D printing - on Mars!

The Future Of Elon Musk's Neuralink
'Cerebral Electromagnetic Emmission Amplification and Relay System ó call it artificial telepathy, if you like.'

Researchers Make You Say Anything in Videos
'[It] caused his televised image... to mouth the vowels and consonants beautifully.'

Jeff Bezos Tries Waldoes (Robotic Hands)
'Waldo put his arms into the primary pair before him...'

Asimov and Musk - Boring Company Tunnel vs. Street Race
'There was almost no sound, just a steady velvety whirr as the taxi sped along.'

Project Dylan - Amazon's Voice-Activated Wearable That Recognizes Human Emotions
Life imitates anime art.

Tesla Diagnoses Itself, Sends Part Request
'Tentacles emerged from the side of the machine and felt puzzledly at the damaged area.'

Lilium Electric Air Taxi Prototype
'The air-taxi found its way past and around other ground-cars...'

Swedes Premiere T-Pod Driverless Electric Truck
'the trucks gulped packages and scurried like beetles...'

HEL TVD Laser System To Be Built By Dynetics Lockheed Martin
'Forthwith flashes of actual flame, a bright glare leaping from one to another, sprang from the scattered group of men.'

Alcarelle Synthetic Alcohol Like Star Trek Synthehol
Bottoms up!

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.