The red shift doesn't just indicate that there is evidence for the Big Bang theory: the Hubble red shift is evidence supporting the Big Bang theory.
The redshift of galaxies is evidence for the Big Bang theory because it shows that the universe is expanding. When light from distant galaxies is redshifted, it means that those galaxies are moving away from us, indicating that the universe is getting larger and supporting the idea that everything originated from a single point in a massive explosion.
A theory might be replaced with a new theory if the new theory provides a better explanation of the observed phenomena, makes more accurate predictions, or is more consistent with available evidence. Scientific understanding is constantly evolving, and new theories may emerge as more data becomes available or new technologies are developed.
It is the current working theory of the origin of the universe. It is the paradigm that Astronomy is based upon. But, new evidence is always being described. The theory itself might change as our knowledge grows.
One piece of evidence that challenges the Big Bang theory is the "horizon problem," which refers to the fact that the universe appears to be fairly homogeneous and isotropic on large scales despite regions of space being beyond each other's range of causal contact. This suggests that there might have been a period of rapid expansion that smoothed out the universe, but the exact mechanism remains unclear. Another challenge is the "flatness problem," which questions why the universe is so close to having a flat geometry if it has been expanding for billions of years.
People initially did not believe Alfred Wegener's continental drift theory because he lacked a mechanism to explain how continents could move across the Earth's surface. Additionally, there was insufficient evidence at the time to support his theory. It was not until the development of the theory of plate tectonics in the 1960s that Wegener's ideas gained widespread acceptance.
Scientists do not sit in the coffeeshop and dream up a theory and thengo looking for evidence to support it. Scientists make observations andmeasurements of what IS ... the "evidence" you might say ... and then tryto put together a theory to explain what they see.The "Big Bang" theory is the best explanation so far for the observation that allgalaxies in every direction are receding from us at speeds that are proportionalto their distance from us, and for the observation that all of space is filled withan almost uniform level of electromagnetic radiation with a distribution of wavelengthsthat is characteristic of a blackbody at the temperature of 2.7 K, and for theobservation that on the largest scale, the universe consists of roughly 75%hydrogen and 24% helium.
Because technology might change in the future.
A theory can't be definitively proven true or false. It can only be supported or refuted by evidence and testing. The goal of a theory is to provide the best possible explanation of a phenomenon based on current knowledge and evidence.
When the historian has no evidence to back up his theory
That theory does not appear in the records. Remember that many evidence and records have been lost.
Scientists treat all theories the same way, popular or not. They will reject any theory if evidence appears which contradicts it.
theory- Studying something then making a prediction. Then you study a little bit more and thinking your THEORY was right. so theory and prediction are almost the same thing. Prediction- The difference between theory and prediction is that a prediction is a guess it isn't exactly right but you think it might happen. Evidence- Is what you need to make sure your THEORY is correct.
A theory might be replaced with a new theory if the new theory provides a better explanation of the observed phenomena, makes more accurate predictions, or is more consistent with available evidence. Scientific understanding is constantly evolving, and new theories may emerge as more data becomes available or new technologies are developed.
It is the current working theory of the origin of the universe. It is the paradigm that Astronomy is based upon. But, new evidence is always being described. The theory itself might change as our knowledge grows.
A scientist's theory might not be believed even it is correct, if the theory is such a radical departure from existing beliefs that it seems bizarre. The theory of continental drift (which, of course, was eventually accepted) was resisted for decades because it just seemed obvious to people that the continents are not drifting, since we do not notice any such motion. It could also happen that a scientist has a valid theory but has not adequately explained, or experimentally tested that theory. Other scientists require evidence in order to accept a theory.
proof, grounds, demonstration, confirmation, verification, corroboration, authentication, substantiation
Wegner's theory was not accept because he didn't have much evidence to support his theory with and scientists thought that there might have been a land bridge between the continents. Another reason to why his theory was rejected was that he was a foreigner, by that; the scientists didn't really take him seriously.
A "law" contains absolute certainty or scientific truth. A theory is very close to being a law, but without the absoluteness. That is what a theory is. If you have a pretty good idea of how something in science might work you might form a hypothesis (hye-POTH-uh-suss). With enough additional proofs and evidence, a hypothesis may someday turn into a theory.