Re: I'm wainting with baited breath...
Read the abstract of the paper, linked in the article. The concluding paragraph of which is:
Test results indicate that the RF resonant cavity thruster design, which is unique as an electric propulsion device, is producing a force that is not attributable to any classical electromagnetic phenomenon and therefore is potentially demonstrating an interaction with the quantum vacuum virtual plasma. Future test plans include independent verification and validation at other test facilities.
The last sentence is in keeping with the scientific method.
"We did X and observed Y. We were surprised by Y. Can anyone help us confirm that we didn't overlook unknown factor(s) Z? Thank you!"