Gravity Assist Will Help Pluto-Bound Craft

Gravity assist? The New Horizons spacecraft, the first probe ever sent to Pluto and the Kuiper Belt, launched a year ago atop a Lockheed Martin-build Atlas 5 rocket. With an after-burn speed of 36,250 miles per hour, it's NASA's fastest probe ever. How much assistance could it need?

It needs help, because even at that rate, the New Horizons craft would take twelve years to get to Pluto. The "slingshot" effect of Jupiter's gravity will shave about three years off that schedule.


(Gravity assist from Jupiter helps New Horizons craft )

At it's closest approach, the New Horizons spacecraft will come within 1.7 million miles of the gas giant. At present, the probe is about 41 million miles from Jupiter and is now closing in at a speed of about 44,000 miles per hour.

The spacecraft will be seized by Jupiter's gravitational field and hauled along with the gas giant in its orbit. By the time New Horizons breaks free, it should achieve a velocity of about 52,000 miles per hour.

Who first thought of the idea of using a gravity assist to speed space craft through the solar system? The first scientists to work on it were Derek Lawden in 1954 and Michael Minovitch in 1961 at JPL. As far as I know, the first person to explicitly suggest that a gravity assist would work for spacecraft was science fiction writer Ray Cummings in his 1931 novel Brigands of the Moon.

We were at this time no more than some sixty-five thousand miles from the moon's surface. The Planetara presently would swing upon her direct course for Mars. There was nothing that would cause passenger comment in this close passing of the moon; normally we used the satellite's attraction to give us additional starting speed.
(Read more about Ray Cummings' gravity assist)

Read more about Pluto-Bound Spacecraft to Nab Speed Boost in Jupiter Flyby; find out more about gravity assisted space missions. (Technorati Profile)

Scroll down for more stories in the same category. (Story submitted 1/20/2007)

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 ")

Humanity Star LEO Advertisement?
'Everyone has noticed those enormous advertisements...' Jules Verne, 1889.

Bigelow Prepares Inflatable Lunar Hotel
'Suddenly, hitherto unheard-of sums of money became available for investment in civilian orbital stations.' - Carl Sagan, 1985.

NASA SEXTANT First With X-Ray Nav In Space
'You need at least four beacons for an accurate fix.' - Harry Harrison, 1956.

Subsurface Martian Ice Slabs Piece Of Cake For Miners
'One shy little fellow with bloodshot eyes of old-time drillman stood up. 'I'm an ice miner,' he said.' - Robert Heinlein, 1966.

 

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

A 'Genuine Nanorobotic Production Factory'
'Microscopic machinery, smaller than ants, smaller than pins, working energetically, purposefully - constructing something...'

Neuromorphic Computer Offers Non-von Neumann Architecture
Fires faster than brain at 1/10K energy.

Evorus Your Crowd-Powered Conversational Assistant
'...the DS [Daily Schedule] was suddenly transformed into a valued confidante.'

Mealworms Food Of The Future
Get your grubs on.

Alibaba's AI May Read Better Than You
'Mike ... could accept other languages and was doing technical translating - and reading endlessly.'

Musk's Boring Flamethrower
'Skeletons in tatters. Burned by a flesh gun'

Humanity Star LEO Advertisement?
'Everyone has noticed those enormous advertisements...'

Nissan ProPILOT Slippers Are Self-Parking, Autonomous
Beyond science and fiction.

Atomristors - Atomic Memristors - Using Thin Nanomaterials
'I could almost feel those little tunnel junction neuristors working, forming their own interconnections as I operated it.'

Bigelow Prepares Inflatable Lunar Hotel
'Suddenly, hitherto unheard-of sums of money became available for investment in civilian orbital stations.'

Drunk Driver Of Tesla Claims Autopilot Was In Charge
'Mr. Garden, you are in no condition to drive.'

Medical Exoskeleton From Cyberdyne Gets FDA Approval
It's been a long road for HAL-5; I started writing about it in 2005.

Fungi-Infused Concrete Repairs Itself
'I noticed that curious mottled knots were forming, indicating where the room had been strained and healed faultily.'

Shiftwear Display Shoes
'He unlaced her shoe and glanced at its readout.'

NASA SEXTANT First With X-Ray Nav In Space
'You need at least four beacons for an accurate fix.'

GM Introduces Cruise AV With No Steering Wheel
'How about the steering wheel?' ... 'I do not need one.'

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.