The Journal of Space Commerce

The Journal of Space Commerce

Microwave Electrothermal Thruster Testing Continuing in Space

Tom Patton's avatar
Tom Patton
May 08, 2023
∙ Paid
Share

A new Microwave Electrothermal Thruster (MET) spacecraft engine design is undergoing a successful in-space testing campaign. Developed by Momentus, the microwave electrothermal thruster has completed more than a dozen test firings ranging from 30 seconds up to five minutes – the expected range for Momentus standard missions.

“We're already achieving burn…

Keep reading with a 7-day free trial

Subscribe to The Journal of Space Commerce to keep reading this post and get 7 days of free access to the full post archives.

Already a paid subscriber? Sign in
© 2025 Ex Terra Media, LLC
Privacy ∙ Terms ∙ Collection notice
Start writingGet the app
Substack is the home for great culture