An object transmitter (airplane) with “sound A” is traveling with higher speed to the sound (superior to mach 1, supersonic / hypersonic), then, if you are stopped, you can not hear the “sound A”.
inside the moving airplane (>mach 1), it is impossible to hear sound emitted in their rear from a transmitter stopped in space
THEN, you have SAME BEHAVIOR WITH THE LIGHT, so :
An object traveling with speed higher than light (hyper light speed), it gives to you a dot of light in front of you (in the lateral/back, you just see black – “absence of light” relative to you with hyper-speed of light. Hyper-speed of light gives advance position and the 3D reality of image is not the same . hyper dimension) .
Black-hole has higher speed than light, that is why you can not see the frequency (it is black in advance of higher speed of the light. You must have the same speed of the black-hole to see frequency of the black-hole).
Inside the sun, it is the output of black-hole, it expands the compressed light from the universe of hyper light speed (the black-hole parallel universe). If you introduce yourself in the center of the sun, you will travel in the hyper light speed. Suns are like geodesic points to map the universe and traveling to this point-doors