Movie 8 (:50)

Script : To understand relativistic aberration, consider the ordinary "real" world. When a vehicle moves through rain, to the vehicle the rain seems to fall at an angle. In an analogous process, photons "falling" into the camera appear to come from different angles as the camera moves at different speeds. As the camera moves faster and faster, photons enter it at increasingly steeper angles.

This means that things that would
appear behind us if we were in their rest frame are wrapped forward into our field of view. The same, reversed, applies to outgoing photons. This gathering of light into a narrow circle in the direction of travel creates a headlight effect forward and a dimming effect behind.