Project EM

 Concept: 

Project EM, named after the Electromagnetic drive, was a project started by Void under M's direction to create an electric propulsion system capable of operating in space without the ejection of any fuel source. This would seemingly violate Newton's third law of motion, however small, hotly debated experiments in the late 20th century and the early 21st century; suggested that the technology may be within grasp.

Void's approach was not only to produce a drive capable of experimentally producing reactionless thrust; but also to discover whatever phenomena allowed it to be possible and study it to produce more and more powerful drives, with an understanding of their underlying physics.

If the drive were successful, Void planned to produce a craft powered by the reactionless drive and test the upper limits of its speed.

The concept was for the drive to be magnetohydrodynamic, and use quantum vacuum fluctuations as a fluid medium. Investigations into whether reflecting microwaves off this medium may also generate thrust was also under investigation.

 Results: 

The initial tests proved very promising and evidence to suggest the theoretical model was correct. This led to the construction of a prototype craft.

The craft was launched from the back of a Space X Falcon 9 rocket into orbit where it engaged its electrical drive and exceeded a speed barrier that was invented after the fact - 1,000,000 km/h. The craft is a massive step forward in space propulsion and garners media attention the world over.

A new term is coined for speed exceeding 1,000,000 km/h - referring to it as 1V (approximately 0.1% light speed).