Not being very familiar with the the topic, what would it cost to build a usable version of this? How massive would it be?
Constant thrust using only solar power and no propellants says to me that one could certainly shut the skeptics up by flying a microsatellite to Mars and back.
Constant thrust using only solar power and no propellants is already possible. Just shine a light backwards, or better yet turn that solar panel into a mirror. What makes this so strange is that it is emission-less even counting photons.
Constant thrust using only solar power and no propellants says to me that one could certainly shut the skeptics up by flying a microsatellite to Mars and back.