Didn't find anything about VASIMIR being tested in space yet.
Until someone gets either of these technologies in space and actually moves something with them, I can't see how they can be characterized as successful . . . .
Until someone gets either of these technologies in space and actually moves something with them, I can't see how they can be characterized as successful . . . .
The granting of a pardon is an imputation of guilt, and the acceptance a confession of it.