Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
 |
How Do You Put An Asteroid Into Earth Orbit? Carefully!
Why put an asteroid in Earth orbit? To get to the goodies, that's why - see Neil deGrasse Tyson Says Asteroid Miners Will Be First Trillionaires if you don't believe me.
Led by Minghu Tan, a PhD student at the University of Glasgow, the paper immediately addresses the most obvious concern with this scenario: What if there’s some mistake in the redirect process and an asteroid accidentally impacts Earth? It’s bad enough that the dinosaurs were oblivious to their doomsday space rock, but it would be especially embarrassing if we humans smack ourselves in the face with one.
Tan and his co-authors suggest mitigating this risk by selecting asteroids under 30 meters in diameter for aerobraking, as they’d burn up in the atmosphere if the maneuver failed. Tan also told me, in an email, that a redirected asteroid might collide with spacecraft in orbit around Earth. That’s why “accurate guidance and control strategies would be required,” he said.
(Via Motherboard.)
As far as I know, the first guy to write descriptively about moving an asteroid into a more desirable spot was Robert Heinlein, in one of his earliest short stories Misfit, published in 1939:
"But if you behave yourself, and listen to the advice of the old spacemen, you'll come out of it strong and healthy, with a little credit stored up in the bank, and a lot of knowledge and experience that you wouldn't get in forty years on Earth. You'll be men, and you'll know it..."
A recent paper published in Acta Astronautica suggests that asteroids could be captured in Earth’s orbit with aerobraking, a maneuver that uses atmospheric drag to decelerate and position objects in stable trajectories around a planet. Aerobraking has helped place interplanetary spacecraft in orbit around Mars and Venus, and to slow down spacecraft returning to Earth.
"Now about our job -- We didn't get one of the easy repair-and-recondition jobs on the Moon, with week-ends at Luna City, and all the comforts of home. Nor did we draw a high gravity planet where a man can eat a full meal and expect to keep it down. Instead we've got to go out to Asteroid HS-5388 and turn it into Space Station E-M3. She has no atmosphere at all, and only about two per cent Earth-surface gravity. We've got to play human fly on her for at least six months, no girls to date, no television, no recreation that you don't devise yourselves, and hard work every day. You'll get space sick, and so homesick you can taste it, and agoraphobia. If you aren't careful you'll get ray-burnt. Your stomach will act up, and you'll wish to God you'd never enrolled.
(Read more about moving an asteroid)
Scroll down for more stories in the same category. (Story submitted 9/3/2018)
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 ")
SpaceX Wants A Moonbase Alpha
'And he had been sent with troops, supplies and bombs to command Russia's most trusted post, the Moonbase.' - L. Ron Hubbard, 1948.
NASA Wants Self-Driving Or Remote-Controlled Vehicles For Lunar Astronauts
'THE autobus turned silently down the wide street of Hydropole. Robot-guided, insulated from noise and cold...'
Orbital Mechanics, The Liftoff, The Turnover, The Retrograde Burn
'...the huge vessel had spun, with a sickening lurch, through a complete half-circle, the instant the power was reversed.' - EE 'Doc' Smith, 1928.
Can A Human Land A SpaceX Rocket On Its Tail?
'If she starts to roll sideways — blooey! The underjets only hold you up when they’re pointing down, you know.' - Stanley G. Weinbaum, 1936.
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.
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
'Whisper Mode' ala Blue Thunder Researched At Bristol
'Forest Lawn.'
Gaia - Why Stop With Just The Earth?
'But the stars are only atoms in larger space, and in that larger space the star-atoms could combine to form living matter, thinking matter, couldn't they?'
Microsoft VASA-1 Creates Personal Video From A Photo
'...to build up a video picture would require, say, ten million decisions every second. Mike, you're so fast I can't even think about it. But you aren't that fast.'
Splendid View Of Eclipse From Orbit Visualized And Repurposed By Arthur C. Clarke
'The area affected was five hundred kilometres across, and perfectly circular.'
Bespoke Environment Music From AIs
'Call 'em Winter Mute," said the other, making it two words.'
Goldene - A Two-Dimensional Sheet Of Gold One Atom Thick
'Hasan always pitched a Gauzy - a one-molecule-layer tent, opaque, feather-light, and very tough.'
SpaceX Wants A Moonbase Alpha
'And he had been sent with troops, supplies and bombs to command Russia's most trusted post, the Moonbase.'
Vast Apartment Living Will Get Even More Vast
'What is your population', I asked. 'About eighty millions.'
NASA Wants Self-Driving Or Remote-Controlled Vehicles For Lunar Astronauts
'THE autobus turned silently down the wide street of Hydropole. Robot-guided, insulated from noise and cold...'
Elon Musk Says Robotaxis Will Be Ready This August, 2024
'The car had no steering wheel, and no one drove!'
Moonwalkers AI-Controlled Electric Shoes
Now that's power walking that Hugo Gernsback would have approved.
Steve Jobs: 'Capture The Next Aristotle - With AI'
'It was disturbing to think of the Flatline as a construct...'
No Tips! Robotic Food Delivery In Phoenix
'...he rewired the delivery robot so that it would serve him midnight snacks.'
Electric Catamaran 'Explorer Eco 40m' Has 'Solar Skin'
'On went the electric-yacht faster and still faster.'
Orbital Mechanics, The Liftoff, The Turnover, The Retrograde Burn
'...the huge vessel had spun, with a sickening lurch, through a complete half-circle, the instant the power was reversed.'
Harvest Power From Tears And Blinking With Smart Contact Lens
'...he realized that it was not quite a clear lens. Speckles of colored brightness swirled and gathered in it.'
