Astronomical Engineering: A Strategy For Modifying Planetary Orbits

  title={Astronomical Engineering: A Strategy For Modifying Planetary Orbits},
  author={D G Korycansky and Gregory P. Laughlin and Fred C. Adams},
  journal={Astrophysics and Space Science},
The Sun's gradual brightening will seriously compromise the Earth'sbiosphere within ∼ 109 years. If Earth's orbit migrates outward,however, the biosphere could remain intact over the entiremain-sequence lifetime of the Sun. In this paper, we explore thefeasibility of engineering such a migration over a long timeperiod. The basic mechanism uses gravitational assists to (in effect)transfer orbital energy from Jupiter to the Earth, and therebyenlarges the orbital radius of Earth. This transfer is… 
Astronomical Engineering Revisited: Planetary Orbit Modification Using Solar Radiation Pressure
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A stellar engine is defined in this chapter as a device that uses the resources of a star to generate work. Stellar engines belong to class A and B when they use the impulse and the energy of star’s


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The collision with Earth of near-Earth asteroids or comet nuclei poses a potential threat to mankind. Objects about 100 m in diameter could be diverted from an Earth-crossing trajectory by the impact
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Self-consistent evolutionary models were computed for our Sun, using Los Alamos interior opacities and Sharp molecular opacities, starting with contraction on the Hayashi track, and fitting the
An introduction to the mathematics and methods of astrodynamics
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▪ Abstract Deepwater formation, the process whereby surface water is actively converted into deep water through heat and freshwater exchange at the air-sea interface, is known to occur in the North
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