It's well established that it takes an amount of time (about 3 minutes) for a photon to reach the earth from the sun. Relativity says that as an object approaches the speed of light that time, for the object, slows. So it follows that a photon leaving the sun at t=0 arrives at the earth at t=0. This is contradicted obviously by observable evidence. How is this so?|||It is NOT contradicted by observable evidence.
The Theory of Special Relativity has been proven with the use of atomic clocks on both airplanes and the Space Shuttle.
The speed of light in a vacuum is a definition and an absolute and unchanging by definition. The only relativistic effect would be from the movement of the space craft not from its communication because that is at the speed of light.
A photon takes years to leave the sun from the inner core where it is formed in the process of fusion and it can take almost eight minutes to reach the earth. This is because the sun is so dense and it has to travel almost 93 million miles to reach earth.
Photons can go slower than the speed of light and do so in an atmosphere, but only by a little bit. That is why the absolute speed of light is measured in a vacuum, and it is always specified that it is done in a vacuum.|||Actually, it takes 8 minutes for a photon to get to the Earth from the Sun. But if you're traveling along with the photon, you wouldn't seem to be moving at all. Time has stopped in that reference frame. But not in the reference frames of someone on the Earth.
Relativity is well-supported by evidence (look up Einstein's own experiments with Mercury and Gravity Probe A). You may want to take a class on relativity or read a book about it.|||Oh my god! How could we possibly have missed that!|||I thought it was seven minutes. And anyway, you have to look at time dilation from the viewpoints (each) of the fast object and the reference reality. time passes differently for the two, that it why it is the theory of RELATIVITY.
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