There is evidence against the theory of relativity. I will paraphrase from a book I own:
The Michelson-Morley experiment showed an ether drag effect. Daylon Miller performed the same experiment with similar results. French Nobel prize winner Maurice Allais repeated the same aforementioned experiments with the same results. Miller's results cost Einstein the Nobel Peace Prize for his theory of relativity.
The Michaelson-Morely experiment was an attempt to measure luminiferous ether, but it instead found that there is no luminiferous ether.
Morely tried the experiment again with Dayton Miller, and some of the results could be arranged in such a way as to support the claim that luminiferous ether does exist, although not in a convincing way.
However, no one has ever been able to reproduce the results of that second experiment. Most actual scientists regard those results as being experimental error due to inaccuracies in the instruments used.
More recent experiments, done with far more accurate instruments, provide results completely consistent with relativity.
Goth, have you ever used a GPS? Most likely not, because you probably think that Obama is using them to track you down and exterminate you with a death panel. Those were designed to compensate for relativistic effects. If relativity was false, and luminiferous ether existed, no GPS device would work.
I will not go so far to say that relativity is the final resting place of physics. It's not. But it is accurate in almost every application in which we apply it, and it far surpasses the older theories that have been discarded, such as your Morley Miller experiment. We're still waiting on the grand unified theory, for the reasons I briefly outlined in my above post. However, all legitimate experimental data corresponds to the predictions made by relativity.
I know you're a hardcore conspiracy theorist, and probably won't believe me on this one, but there is not a single qualified scientist in the world who believes that luminiferous ether exists and that the results of the Morley Miller experiment were correct where the results of the Michaelson Morley experiment and the hundreds of other experiments that have verified relativity were wrong.
But, hey, maybe the Cuban refugees within the CIA who wanted JFK killed for refusing to attempt to overthrow Castro after the failure of Bay of Pigs ALSO went to the site of every experiment done be every university and research facility that has verified relativity, and manipulated the data to convince us that it is wrong.
Oh. My. God. It all makes sense now. Einstein was the mastermind behind it all. He wrote the Protocols of the Elders of Zion. He deliberately published incorrect theories to mislead us. He built the atomic bomb to end the war, then gave the secrets to a Jewish conspiracy group in Russia. During the 1950s Red Scare, to avoid detection as a Communist, he faked his death. For years, he slipped under the radar, until he surfaced in 1963. You see, it was Albert Einstein, on the Grassy Knoll, with an invisible atomic death ray. Oswald was set up. But his crimes didn't end there. He placed atomic bombs within the World Trade Center during its construction, then sent a message to all of the Jews working there, telling them to leave, and then he detonated the bombs, to try to overthrow our government. And he almost got away with it all.
Or maybe, just maybe, this one time, the generally accepted truth is in fact the actual truth.