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
 |
Capture Asteroids In A Bag
NASA is still pondering this bold plan to actually capture a 500 ton asteroid in a giant bag, and return it to Earth orbit.
(How to catch an asteroid)
A 2012 Keck Institute study described an Asteroid Capture and Return (ACR) spacecraft capable of intercepting an asteroid. A 50-foot (15 meters) capture bag would enclose the asteroid and allow the spacecraft to maneuver the rock in space by firing its rocket engines.The spacecraft’s main propulsion would be provided by Hall-effect thrusters. This is a type of ion engine in which the fuel (xenon gas) is accelerated by an electric field. Ion engines produce moderate thrust, but can be fired for a long time to build up acceleration.
To move the asteroid, the spacecraft would first be launched from Earth on an Atlas 5 rocket, slowly spiraling away into space for 2.2 years. Then it gets a gravity slingshot boost from the moon and heads out into deep space.
The spacecraft cruises for 1.7 years until it reaches the target asteroid. Operations at the asteroid take about 90 days. The capture bag is deployed, and once secured, the asteroid is stabilized for towing.
The cruise back to the vicinity of the Earth takes two to six years.
(How NASA Could Do It)
The basic idea for asteroid capture was described in a 1947 science fiction story by V.E. Thiessen. In Asteroid Justice, he describes asteroid nets:
Through the left lower quadrant of the transparent nose he saw one of the nets flare into quick acceleration. It was too far away to be his own, and he watched it, each corner of the net a flaming ribbon of rocket fire in the velvet black of space...But she was soon catching up. With her remote controls she was slowing the rockets of the net, as she increased her own speed. In a few minutes both ship and netted meteor would be hanging motionless alongside, the meteor caught and halted just as a small boy catches a swift ball in his cap.
(Read more about asteroid nets)
But what can you legally do with your captured asteroid?
- Can You Stake A Claim To An Asteroid?
Planetary Resources may have run into a legal snag... - Senate Passes Space Mining Legislation
The US Senate has passed the Space Act of 2015, including its provisions for asteroid mining. - Gather Ye Moonrocks While Ye May
NASA is offering cash money to companies that will dig up a little bit of the moon.
Via Space.com.
Scroll down for more stories in the same category. (Story submitted 3/23/2021)
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 ")
Will Space Stations Have Large Interior Spaces Again?
'They filed clumsily into the battleroom, like children in a swimming pool for the first time, clinging to the handholds along the side.' - Orson Scott Card, 1985.
Reflect Orbital Offers 'Sunlight on Demand' And Light Pollution
'I don't have to tell you about the seven two-mile-diameter orbital mirrors...'
Chrysalis Generation Ship to Alpha Centauri
'This was their world, their planet —
this swift-traveling, yet seemingly moveless vessel.' - Nat Schachner, 1934
The First Space Warship For Space Force
'Each of the electrical ships carried about twenty men...' - Garrett P. Serviss, 1898.
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
Golf Ball Test Robot Wears Them Out
"The robot solemnly hit a ball against the wall, picked it up and teed it, hit it again, over and again...'
Boring Company Vegas Loop Like Asimov Said
'There was a wall ahead... It was riddled with holes that were the mouths of tunnels.'
Rigid Metallic Clothing From Science Fiction To You
'...support the interior human structure against Jupiter’s pull.'
Is The Seattle Ultrasonics C-200 A Heinlein Vibroblade?
'It ain't a vibroblade. It's steel. Messy.'
Roborock Saros Z70 Is A Robot Vacuum With An Arm
'Anything larger than a BB shot it picked up and placed in a tray...'
A Beautiful Visualization Of Compact Food
'The German chemists have discovered how to supply the needed elements in compact, undiluted form...'
Bone-Building Drug Evenity Approved
'Compounds devised by the biochemists for the rapid building of bone...'
Secret Kill Switch Found In Yutong Buses
'The car faltered as the external command came to brake...'
Inmotion Electric Unicycle In Combat
'It is about the size and shape of a kitchen stool, gyro-stabilized...'
Grok Scores Best In Psychological Tests
'Try to find out how he ticks...'
PaXini Supersensitive Robot Fingers
'My fingers are not that sensitive...'
Congress Considers Automatic Emergency Braking, One Hundred Years Too Late
'The greatest problem of all was the elimination of the human element of braking together with its inevitable time lag.'
The Desert Ship Sailed In Imagination
'Across the ancient sea floor a dozen tall, blue-sailed Martian sand ships floated, like blue smoke.'
The Zapata Air Scooter Would Be Great In A Science Fiction Story
'Betty's slapdash style.'
Thermostabilized Wet Meat Product (NASA Prototype)
There are no orbiting Michelin stars. Yet.
Could Crystal Batteries Generate Power For Centuries?
'Power could be compressed thus into an inch-square cube of what looked like blue-white ice'
