Based on information here:
And more in-depth technical discussion here:
It seems that work at Johnson Space Center (JSC) on an EmDrive, where microwaves are used to create thrust, may be generating warp bubbles. There is more work to be done to confirm the consistency of the results in a vacuum, but if it is real, wow. Just wow. Even small warp fields would be astounding to find so early in the field of warp science, and would absolutely belie the assumptions on energy densities required to create a spacewarp drive.