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 ")

Elon Musk, Google To Extend Internet Into Earth Orbit, Then Mars
'This was the center of Interplanetary Communications.'- George O Smith, 1942.

HAVOC Over Venus ala Bespin
'Cloud City is an installation on the planet Bespin...'- George Lucas, 1980.

Should SETI Talk To Molecular Cloud Barnard 68?
'I myself am building basic chemicals at about 10,000,000,000 times the rate at which building is occurring on the whole ... surface of your planet.'- Fred Hoyle, 1957.

Stellar Navigation Based On Network Analysis
'We are a traveling people. We need a travel station here.'- Clifford Simak, 1963.

 

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

DJI Phantom Drone Now With GPS Blocking
'Workarounds were illegal and the fines were expensive...'

OMOTE Face Hackers At Work Video
'...a video-manicuring program came on line.'

Vroom! Your Car Or Truck's Engine Noise Might Be Fake
'... a sound tape to supply the noise'

Care-O-Bot 4 Personal Service Robot
'Beside her moved a gleaming robant...'

Skin Wearable Harvests Power With Triboelectric Effect
'He had tightened the chest to gain maximum pumping action...'

EDSAP Wearable Stroke Detection
'His Altec cephalochromoscope, around which he had built the pleasure part of his schedule...'

Brand Killer Helmet Blocks Real-Life Ads
'Some merely held the holos [ads] at arm's length.'

In Vivo Micromotors Powered By Stomach Acid
First in vivo study of artificial micromotors.

Synthetic 'Squid Skin' For Camouflage On The Way
'The small, chameleon-clad figures continued to advance.'

3D Printer 'Teleports' Objects Like Simak's Way Stations
'An entirely new being but exactly like the old one'

Laser Etching Makes Metal Super-Hydrophobic
'The water flowed off those walls without binding tension.'

Patient Walks Out With Fully Artificial Heart
'The throb of the robot pump gave him confidence...'

Radisens' Gemini Instant Blood Tests
An amazing lab-on-a-panel.

Nonhuman Artist Collective Keeps Robot Artist Earnings Until Legal
Pay the artists!

Argentine Orangutan Receives Basic Human Rights
'They wouldn't dare let the Fuzzies be proven sapient...'

Elon Musk, Google To Extend Internet Into Earth Orbit, Then Mars
'This was the center of Interplanetary Communications.'

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.