Which are explanations or statements based on facts in the scientific community?

Explanation or statements based on facts are termed as Theory.

Definition : A scientific theory is an explanation of some aspect of the nature that incorporates the facts, laws, inferences, and tested hypotheses." Explanation :

post-impressionism is a predominantly french art movement that developed roughly between 1886 and 1905, from the last impressionist exhibition to the birth of fauvism. post-impressionism emerged as a reaction against impressionists' concern for the naturalistic depiction of light and colour.

explanation:

this protocol provides a detailed procedure for co-immunoprecipitation (co-ip) to identify protein–protein interactions.