CubeSat Micropropulsion System Uses Water as Propellant

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A new type of micropropulsion system for miniature satellites called CubeSats uses an innovative design of tiny nozzles that release precise bursts of water vapor to maneuver the spacecraft.

FEMTA micropropulsion technology is developed by Purdue University in collaboration with NASA Goddard Space Flight Center with funding from NASA SmallSat Technology Partnership grant NNX15AW40A.

Purdue's College of Engineering is among the largest in the United States and includes 13 academic programs, all with high rankings. U.S. News and World Report ranks Purdue's College of Engineering in the Top 10 nationwide: no. 8 for graduate programs and no. 9 for undergraduate programs.
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Great! Cubesats that just uplink/downlink are getting old after everyone else has already done it. Using them to explore new tech and then doing uplink/downlink is a better use of space (imho).

anotherdave
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It has a raspberry pi as the computer!!!

albertopajuelomontes
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hello there, congrats
how long it could generate thrust, before refueling it with water? Thank Bk

bkstyles
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Why would you leave the ports on the RPI? It‘s not like someone could use them...

lucasimark
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how do you melt the block of ice before turning on the thruster?

entertastic
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What about reaction wheels? They are rcs systems that require no propellant

nightrous