A ground test of the Microwave Electrothermal Thruster (MET) successfully demonstrated on the Vigoride-5 vehicle.

n-space transportation company Momentus announced March 31 it has successfully started tests of the propulsion system on its Vigoride tug launched earlier this year.

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Jeff Foust has more than a decade of experience writing about space policy, entrepreneurial ventures and regulatory affairs. In 2001, he established spacetoday.net to aggregate and summarize the day's space-related news stories. In 2003, he started The...