The evidence that the space within our Universe was almost infinitely dense about 13.7 billion years ago, and has been expanding at a (pretty much) steady rate ever since, is overwhelmingly persuasive.
1) The distance between us and all distant galaxies is increasing, and the rate at which that distance is increasing is directly proportional to the distance to those distant galaxies.
2) The existence, spectrum, and isotropy of the cosmic microwave background radiation.
3) The ratio of hydrogen to helium in all parts of our Universe.
4) Quasars are seen far from us, but not close to us.
5) The ratio of long-lived isotopes to their decay products.
6) The absence of white dwarf stars older than about ten billion years.
The evidence supporting Big Bang Cosmology is as solid as the evidence for a heliocentric solar system.
There is currently no observational data that fundamentally conflicts with the Big Bang model. There are however some people that have trouble accepting the model: they are very much against it.
completeness check
The "Truth in Lending and Consumer Leasing Acts" allow borrowers to sue a creditor or credit bureau that verifies incorrect data about his or her credit history.
The Big Bang theory is not considered an outdated theory; rather, it remains the prevailing cosmological model explaining the origin and evolution of the universe. Supported by a wealth of evidence, including cosmic microwave background radiation and the observed expansion of the universe, it has been refined over time as new data emerges. While scientific theories can evolve, the Big Bang theory continues to be validated by ongoing research and observations, maintaining its status within the scientific community.
That's the primary problem with the big bang theory - the universe has been mapped back to a couple of billionths of a second after the big bang occurred and all the data from then and beyond fits perfectly with the predictions postulated by the big bang theory itself, but there are limits to how far back you can see. However, the conflicting theories miserably fail to provide an idea as to why the universe started either - religions state that there was a god beforehand, which is infinitely more complex than an explosion, the steady state theory in addition to being pretty much disproven requires that the universe was there to start with, and Occam's razor then leads to the big bang theory. It's the simplest explanation that makes sense, but no theory in existence has a satisfactory argument as to why the universe started in the first place.
No. A theory is formed when lots of data point to a probability. Further data may modify the theory.
TCP The three way handshake verifies that data arrived
The Big Bang theory proposes that the Universe was very small, dense and hot in at some point in the past and that it has been expanding ever since. Hubble's observation that the Universe is in fact expanding agrees with the Big Bang theory.
A "theory", as the word is used in science, is not just a guess; it's refers to a system of thought that is well-established, and confirmed by numerous experiments. For example, the "Theory of Relativity" or the "Big Bang theory" are more than wild guesses; there are strong reasons to believe in each of them, including the results of numerous experiments.For more information, read the article on "Scientific theory", in the Wikipedia - or at least the introductory paragraphs.
Calculated data is data attained from a theory and or formula. Raw data is data accumulated from an observation or experiment. If the calculated data from a theory is successful in predicting the raw data of an observation/experiment, then the theory is strengthened.
1) Hubble Constant, indicating a Universe of age 13.7 billion years 2) Spectrum and isotropy of the cosmic microwave background radiation. 3) Percentage of hydrogen and helium in all parts of our Universe. 4) Ratio of long-lived radioactive isotopes to their decay products, showing an age of about 12 billion years. 5) Distance to nearest quasar. If any of the above were missing or substantially different from the predictions of Big Bang Cosmology, then scientists would have empirical reasons to doubt that cosmology. As of yet, no difference between observation and the predictions of BBC have been found.
A theory is a well-supported explanation for phenomena based on observation, experimentation, and analysis. Data refers to the facts, figures, or information collected from experiments, surveys, or observations, which are used to support or refute a theory. In summary, a theory is an overarching explanation, while data are the specific observations that inform and test that theory.