Recent content by MNIce

Back in the 1980's there was some research on laser-steered charged particle beams for anti-missile systems. The notion was to use high-intensity beams to ionize a channel for the beam by the means Drakkith described. I think the concept was dropped when it was realized that a high-intensity...

It depends on your chosen frame of reference. In the conventional, earth-based frame, viewing an object 100 light-years away will show you what happened there 100 years ago.* In the incoming photons' frame of reference, no time has passed since emission, so the view is real-time. Since we...