Wouldn't that be fun, putting a large light source close to a comet and watching the effect. Wouldn't take a sustained light either, something like a flash grenade on steroids. hmm...

I see the dispersion, but I see no evidence of consequential matter loss. The dispersion simply causes the "Fog" surrounding the comet to become larger and larger. The only losses would seem to come from the outer limits of the cluster of co-orbiting matter gets trapped by gravitaion of passing objects which are not close enough to trap the comet itself.

I'd like to see more evidence of solar wind, ones which take into account the effect of heat radiation differentiation. Lets see... Maybe take small pieces of feather, each one a different color. Place them in the shadow of a large object, then slowly move the large object to allow one edge of the feather to be exposed to sunlight. If the solar wind is real, each feather should start to spin as the solar wind strikes one edge and not the other, and each color feather should spin at an equal rate.

I suspect the results will be different (if evident at all) on light colored feathers than it is on dark colored ones. The reason being that the spin would be caused by excited molocules of air, few though they are being heated by heat radiation of the feather. Different colors heat differently thus I believe there will be different results.

Light is mass, which has been converted into energy. Thus you may be able to easily change it from one form of energy to the other, you need to convert it into mass again to gain significant benefit from its movement. I don't see how it can be used to move an object. Now if you want to discuss using it to heat an object and then use the generated heat to push against heated air molecules (few though they are, the are present even in space) and create thrust in that manner, I agree it can be done and observed.