Spacecraft Design
LISA Pathfinder is being built by EADS Astrium Ltd. of Stevenage, UK under contract to the European Space Agency. It will carry a European 'LISA Test Package' comprising inertial sensors, interferometer and associated instrumentation as well as two drag-free control systems: a European one using field emission electric propulsion (FEEP) thrusters, and a US-built 'Disturbance Reduction System' using slightly different sensors and colloid thrusters that use ionised droplets of a colloid accelerated in an electric field. The colloid thruster system was built by Busek and delivered to JPL for integration with the spacecraft.
Read more about this topic: LISA Pathfinder
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“We find that Good and Evil happen alike to all Men on this Side of the Grave; and as the principle Design of Tragedy is to raise Commiseration and Terror in the Minds of the Audience, we shall defeat this great End, if we always make Virtue and Innocence happy and successful.”
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