2021年2月4日 星期四

How green is my satellite propellant? asks ESA

The European Space Agency (ESA) has highlighted progress towards the use of a ‘greener’ satellite propellant to replace the hydrazine currently used by thrusters. Following work with the UK company European Astrotecht, it has reported on an eight-month test cycle for a number of candidate propellants. The tests (pictured) – reportedly the equivalent of 5.33 ...

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