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A comment on The revolutionary ion engine that took spacecraft to Ceres.

Re:The revolutionary ion engine that took spacecraft to Ceres by grownseed on Monday March 09, 2015 @07:19PM (#9174793)
An interesting description of Dawn's ion engine and its pros and cons: http://dawn.jpl.nasa.gov/mission/journal_12_06.asp#ips (Marc Rayman, Chief Engineer, NASA's Jet Propulsion Lab, 2006).
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Re:The revolutionary ion engine that took spacecraft to Ceres by everyone on Monday March 09, 2015 @08:35PM (#9175133)
"The force of the ion thruster on the spacecraft is comparable to the weight of a single sheet of paper."

That is magnificent.

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