SOLAR SAILS An alternate approach to propulsion Origins In 1865, - - PowerPoint PPT Presentation

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SOLAR SAILS An alternate approach to propulsion Origins In 1865, - - PowerPoint PPT Presentation

SOLAR SAILS An alternate approach to propulsion Origins In 1865, physicist James Maxwell proposed that light, as a form of electromagnetic radiation, is capable of exerting pressure on other objects. This pressure, however slight,


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SLIDE 1

SOLAR SAILS

An alternate approach to propulsion

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SLIDE 2

Origins

  • In 1865, physicist James Maxwell

proposed that light, as a form of electromagnetic radiation, is capable

  • f exerting pressure on other objects.
  • This pressure, however slight, would be

enough to propel an object forward in space, provided that it was light enough.

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Solar Sails: An Overview

Large, “sails” made of thin, lightweight material, usually a polyester film.

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Use for Space Travel

  • When attached to a spacecraft, solar

sails reflect photons from sunlight.

  • Momentum from the photons places

pressure on the sail, propelling it through space.

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Benefits

Eliminates need for onboard propellant:

  • Reduces cost
  • Reduces mass
  • Increases longevity of mission
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Current Applications

  • Japan’s 2010 IKAROS mission marked

the first successful use of solar sails as propulsion while travelling toVenus.

  • After a failed first launch, NASA

successfully deployed a solar sail in low-Earth orbit as part of the 2010 NanoSail-D mission.

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Near-Future Application

  • NASA is planning to use solar sail

propulsion on the upcoming Near Earth Asteroid Scout probe, which will study neighboring asteroids as a part of the 2020 Exploration-1 mission.

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SLIDE 8

Future Application

  • Solar sails could potentially travel to

the far reaches of the solar system, and possibly beyond.

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SLIDE 9

Questions?