The purpose of science is the appreciation of the world formed and modified via the dual procedure of observing and formulating models that become validated or overtaken thanks to new observations. Throughout the 20th century we have witnessed the spectacular substitution of the Newtonian model by the relativist model; the spectacular development of the incredible expanding universe and we are now facing the terrible situation in which we can only account for 5% of the energy matter of the universe completing the remainder with very unscientific concepts such as dark matter and dark energy which overtake the ether of the l9th century.