One lesson I've learned about science is that it often gets seriously off track and entire generations of professionals are so inculcated in the literally dominant paradigm that they can not see the truth right in front of their noses. Indeed this tendancy to willful blindness is a human problem, but scientists are supposed to value objectivity above all else. Nevertheless examples abound: Alfred Weggoner's plate tectonic theory, rejected against the clear forensic details he had assembled until some theorist could explain the movement which had obviously occured. Germ theory was dismissed as ridiculous by medicos for ever, until the microscope made their objections moot, despite clear empirical evidence since at least the Middle Ages that hygiene saved lives, as well as the discovery in the mid-18th Century of the vaccination process. Meteor Crater in Arizona, despite being covered in more than 30 tons of myriad iron shards, was deemed a volcanic steam vent by geologists for decades because they couldn't find a meteorite at the center of the hole (it should be noted they couldn't find a steam vent either, but hey....) The moon's impact history was similarly taught as volcanic until the Apollo program proved the truth, which some open-eyed individuals had been preaching for years. The Big Bang is also quite likely an elaborate fabrication, as with the absurd Dark Epicycles which were invented to keep it on life-support.
As Bertrand Russell put it, meaning to excoriate religious followers, but always a useful warning about all things faddish, including scientific opinion: "The fact that an opinion has been widely held is no evidence whatever that it is not utterly absurd."