By definition, science is knowledge derived from observation, study, and experimentation.
Science encompasses a wide variety of disciplines.
Each discipline has a characteristic focus but all are united by use of the scientific method, and all are affected by censorship. There are few areas of life in which one will not encounter a degree of censorship. But since each of the various disciplines of science is bound indissolubly to the others, if one topic is omitted through censorship, the ability to study any of them is inhibited. While the study of biology focuses on organisms, it is forever dependent on chemistry, chemistry on physics, physics on mathematics, and so on. All scientific disciplines are united in demonstrating the evolution of life on this planet.