The Deep-Theory end of the continuum of scientific “knowledge” (being based as it is on primarily extrapolation and reasoned conjecture, based on unproven assumptions) is constantly changing. Most frequently being overturned and replaced rather than “evolving”
a few major examples:
geocentric/heliocentric
gradual evolution/punctuated equilibrium
newtonian/einsteinian motion
cause and effect/quantum non-determinism
steady state/big bang
The other end of the spectrum (technology) being based on repeatable, observable, measurable, existing phenomena, although not sacrosanct, and while subject to frequent modification and clarification is almost infinitely more reliable and changes generally by a process of “evolution”, not “revolution”
When evaluating the reliability of “science” one must be very careful where on the continuum one is referring to.