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I agree with TQ, our observational data is very extensive and sophisticated. Scientists work very hard to eliminate systematic [measurement] errors, so, our data is highly reliable and well vetted. The interpretation of that data is a different matter. Despite the best efforts of the best scientists representing a number of specialties [math, particle physics, cosmology, etc.] it is still difficult to reach a consensus on what the data is telling us. We build and tear down different models on a daily basis. The one we have now [LCDM] is very strong, but, still imperfect. There is no disagreement on that point. That's why we continue to explore, measure, calculate and imagine.
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