National geographic: NASA's 'Impossible' Space Engine Tested—Here Are the Results
"“The ‘thrust’ is not coming from the EmDrive, but from some electromagnetic interaction,” the team reports in a proceeding for a recent conference on space propulsion."
"When they turned on the system but dampened the power going to the actual drive so essentially no microwaves were bouncing around, the EmDrive still managed to produce thrust—something it should not have done if it works the way the NASA team claims."
"That sounds like a blow to the concept of the EmDrive, but Woodward is not ready to close the case on the contraption just yet. Aside from the lack of mu metal shielding, the Dresden lab’s tests were run at very low power levels, meaning that “any real signal would likely be swamped by noise from spurious sources,” he says."