Estimated, or Calculated ? But probably not Actual !
https://sputniknews.com/science/201912151077580434-do-your-math-nasa-scientists-new-research-on-the-milky-ways-weight-challenges-the-space-agency/
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Author: Jeff_Cerro
SAWE Hampton Roads Chapter
Vehicle Systems - Mass Properties - Structures
Standards and Practices
Model Based MPE
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