An example of metaphor in a scientist's writings:
"…not all statements which lack a logical foundation are scientifically worthless, and that [such] short-sighted formalism stops up the very fountain at which a Galileo, a Kepler, a Newton, and many other great physicists have quenched their thirst for scientific knowledge and insight."
Max Planck
Plank, M. (1948/1949). The concept of causality in physics (F. Gaynor, Trans.). In Scientific Autobiography and other papers (pp. 121-150). Philosophical Library.
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Many examples of science metaphors are listed in 'Creative comparisons: Making science familiar through language. An illustrative catalogue of figurative comparisons and analogies for science concepts'. Free Download.