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...ticular those of the [[Solar System]] and the processes that form them. It studies objects ranging in size from [https://en.wikipedia.org/wiki/Micrometeoroid ...interrelated observational and theoretical branches of planetary science. Observational [[research]] can involve a combination of [[space]] [[exploration]], predom

...[[disciplines]], so while modern natural history dates historically from [[studies]] in the [https://en.wikipedia.org/wiki/Greco-Roman_world ancient Greco-Rom

== Observational studies == ...r treatment on a different group of patients. The results of observational studies are considered much less convincing than those of designed experiments, as

...s complement each other, with theoretical astronomy seeking to explain the observational results, and observations being used to confirm theoretical results. ...tly stagnant in medieval Europe, at least until the 13th century. However, observational astronomy flourished in the Islamic world and other parts of the world. Som

...theories. This is done through repeatable [[experiment]]s or observational studies.

...gy. Examples of boundary blurring include emerging disciplines like social studies of [[medicine]], [[neuropsychology]], [[bioeconomics]] and the history and ...t]]". "Al-Biruni: The First Anthropologist", He wrote detailed comparative studies on the [[anthropology]] of peoples, religions and cultures in the [[Middle

...emed to be exactly the case with the universe under the Big Bang scenario; observational astronomers were unable to determine whether the curved space of the univer ...inated bubble walls as a major worry: the walls would be so far beyond our observational reach of about 15 billion light-years that they could never possibly become

...or illegal, the derivation of cause effect relationship from observational studies must rest on some qualitative theoretical assumptions, for example, that sy notion that can be estimated directly in observational studies, while the latter is a causal notion (also called "causal effect") which is

...it had been predicted, that so impressed him that he began to make his own studies of astronomy helped by some of the professors. He purchased an [[ephemeris] Tycho was the preeminent observational astronomer of the pre-telescopic period, and his observations of [[star|ste

...decides both the [[evolution]] and ultimate fate of the universe. Modern [[studies]] also suggest that our universe has an average density equal to the [https ...nies (observers), and so on. Our analogy must reflect the well-established observational [[fact]] that locally each observer sees a slightly different picture, but

...[Appeal to authority|arguments from authority]] and biased [[observational studies]]. [[Critical rationalism]] instead holds that unbiased observation is not

...[Appeal to authority|arguments from authority]] and biased [[observational studies]]. [[Critical rationalism]] instead holds that unbiased observation is not