List of unsolved problems may refer to several notable
conjectures
In mathematics, a conjecture is a conclusion or a proposition that is proffered on a tentative basis without proof. Some conjectures, such as the Riemann hypothesis (still a conjecture) or Fermat's Last Theorem (a conjecture until proven in 19 ...
or
open problem In science and mathematics, an open problem or an open question is a known problem which can be accurately stated, and which is assumed to have an objective and verifiable solution, but which has not yet been solved (i.e., no solution for it is kno ...
s in various academic fields:
Natural sciences, engineering and medicine
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Unsolved problems in astronomy
This article is a list of notable unsolved problems in astronomy. Some of these unsolved problems in astronomy are theoretical, meaning that existing theories seem incapable of explaining a certain observed phenomenon or experimental result. The ...
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Unsolved problems in biology
This article lists notable unsolved problems in biology.
General biology
Evolution and origins of life
*Origin of life. Exactly how, where, and when did life on Earth originate? Which, if any, of the many hypotheses is correct? What were the ...
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Unsolved problems in chemistry
This is a list of unsolved problems in chemistry. Problems in chemistry are considered unsolved when an expert in the field considers it unsolved or when several experts in the field disagree about a solution to a problem.
Physical chemistry pr ...
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Unsolved problems in engineering
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Unsolved problems in geoscience
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Unsolved problems in medicine
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Unsolved problems in neuroscience
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Unsolved problems in physics
Mathematics, philosophy and information sciences
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Unsolved problems in mathematics
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Unsolved problems in statistics
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Unsolved problems in computer science
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Unsolved problems in philosophy
This is a list of some of the major problems in philosophy.
Metaphilosophy
Philosophical progress
A prominent question in metaphilosophy is that of whether or not philosophical progress occurs and more so, whether such progress in philoso ...
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Unsolved problems in information theory
Social sciences and languages
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Unsolved problems in economics
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Unsolved problems in fair division
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Unsolved problems in linguistics
See also
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Cold case (unsolved crimes)
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List of ciphertexts
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List of NP-complete problems
This is a list of some of the more commonly known problems that are NP-complete when expressed as decision problems. As there are hundreds of such problems known, this list is in no way comprehensive. Many problems of this type can be found in ...
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List of PSPACE-complete problems
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List of paradoxes
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List of undecidable problems
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List of unsolved deaths
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Lists of problems
{{DEFAULTSORT:Unsolved problems
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Science-related lists
Lists of problems
Engineering