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- Gravity_tractor abstract "A gravity tractor (GT) is a theoretical spacecraft that would deflect another object in space, typically a potentially hazardous asteroid that might impact Earth, without physically contacting it, using only its gravitational field to transmit the required impulse. The gravitational force of a nearby space vehicle, though minuscule, is able to alter the trajectory of a much larger asteroid if the vehicle spends enough time close to it; all that is required is that the vehicle thrust in a consistent direction relative to the asteroid's trajectory, and that neither the vehicle nor its expelled reaction mass come in direct contact with the asteroid. The tractor spacecraft could either hover near the object being deflected, or orbit it, directing its exhaust perpendicular to the plane of the orbit. The concept has two key advantages: namely that essentially nothing needs to be known about the mechanical composition and structure of the asteroid in advance; and that the relatively small amounts of force used enable extremely precise manipulation and determination of the asteroid's orbit around the sun. Whereas other methods of deflection would require the determination of the asteroid's exact center of mass, and considerable effort might be necessary to halt its spin or rotation, by using the tractor method these considerations are irrelevant.".
- Gravity_tractor wikiPageExternalLink 070217-asteroid-impact.html.
- Gravity_tractor wikiPageExternalLink www.b612foundation.org.
- Gravity_tractor wikiPageExternalLink article.ns?id=dn8291.
- Gravity_tractor wikiPageID "18272728".
- Gravity_tractor wikiPageLength "9956".
- Gravity_tractor wikiPageOutDegree "18".
- Gravity_tractor wikiPageRevisionID "696606694".
- Gravity_tractor wikiPageWikiLink Asteroid_Redirect_Mission.
- Gravity_tractor wikiPageWikiLink Category:Planetary_defense.
- Gravity_tractor wikiPageWikiLink Category:Spaceflight_concepts.
- Gravity_tractor wikiPageWikiLink Gravitational_field.
- Gravity_tractor wikiPageWikiLink Gravity.
- Gravity_tractor wikiPageWikiLink Impulse_(physics).
- Gravity_tractor wikiPageWikiLink Ion_thruster.
- Gravity_tractor wikiPageWikiLink Near-Earth_object.
- Gravity_tractor wikiPageWikiLink Newtons_law_of_universal_gravitation.
- Gravity_tractor wikiPageWikiLink Orbital_station-keeping.
- Gravity_tractor wikiPageWikiLink Potentially_hazardous_object.
- Gravity_tractor wikiPageWikiLink Rusty_Schweickart.
- Gravity_tractor wikiPageWikiLink Solar_sail.
- Gravity_tractor wikiPageWikiLink Spacecraft.
- Gravity_tractor wikiPageWikiLink Sun.
- Gravity_tractor wikiPageWikiLink Tidal_force.
- Gravity_tractor wikiPageWikiLink Xenon.
- Gravity_tractor wikiPageWikiLinkText "Gravity tractor".
- Gravity_tractor wikiPageWikiLinkText "gravitational tractor".
- Gravity_tractor wikiPageWikiLinkText "gravity tractor".
- Gravity_tractor wikiPageUsesTemplate Template:Planetary_defense.
- Gravity_tractor wikiPageUsesTemplate Template:Reflist.
- Gravity_tractor wikiPageUsesTemplate Template:See_also.
- Gravity_tractor wikiPageUsesTemplate Template:Wide_image.
- Gravity_tractor subject Category:Planetary_defense.
- Gravity_tractor subject Category:Spaceflight_concepts.
- Gravity_tractor hypernym Spacecraft.
- Gravity_tractor type ArtificialSatellite.
- Gravity_tractor type Concept.
- Gravity_tractor type Thing.
- Gravity_tractor comment "A gravity tractor (GT) is a theoretical spacecraft that would deflect another object in space, typically a potentially hazardous asteroid that might impact Earth, without physically contacting it, using only its gravitational field to transmit the required impulse.".
- Gravity_tractor label "Gravity tractor".
- Gravity_tractor seeAlso Asteroid_impact_avoidance.
- Gravity_tractor sameAs Q5598088.
- Gravity_tractor sameAs کشانه_گرانشی.
- Gravity_tractor sameAs m.04cwzsl.
- Gravity_tractor sameAs Q5598088.
- Gravity_tractor wasDerivedFrom Gravity_tractor?oldid=696606694.
- Gravity_tractor isPrimaryTopicOf Gravity_tractor.