Are you saying that a photon travelling for 16,000 years from Orion goes into our eyes and dissipates as energy??
Cant believe the baseball theory. I know I sometimes get sore eyes, but not THAT sore
So if photons dont hit anything, they just go on and on and on.....
Photons are massless aren't they? And they can turn into energy then, because of E=MCsquared??
Surely when the photon hits the objective lens (or an air particle for that matter) it will disappear then....so how do we see it with our eyes????