Science and the telly is a very heady mixture. Programmes about, or referring to, science are surprisingly popular. The general viewing public has about as much understanding of the scientific method as a lawyer has about the truth. Science-related programmes are commissioned and produced by people who aren't scientists. They're put together by the flakiest folk of all; television producers.
A television producer is mostly concerned with viewing statistics and maximum audiences. When it comes to science they think that it has to be displayed in a way that is relevant to the 'average viewer'. The average viewer is a mythical figure whose attention span and intellectual capacity is assumed to be roughly equivalent to that of a two-year-old rabbit.
Scientists (in broadcasting applications) are usually 'Professors' of something, or other, who are on the payroll of a university that is desperate for cash. These scientists have to justify their existence to the institutions that employ them by attracting funding from either commercial companies or politicians.
On a typical programme about astronomical matters, such as 'Gamma-Ray Bursts', or the 'Death of Our Sun', we are always treated to the spectacle of a 'Scientist' talking about the implications for 'Us' (meaning the survival of mankind). When we consider gamma-ray bursts, we are told that they all occur over ten billion light years away. Non have been detected in our galaxy, probably because they stopped occurring about ten billion years ago. We are not going to be wiped out by a gamma-ray burst, but we are told by a Professor (who knows better), that such an event (if close enough) would wipe us out. When we consider the death of the sun, we are told that this will happen in about 4.5 billion years' time, and we might survive by 'moving to Mars'. Mankind has been on this planet for (at most) half a million years. Life on this planet is about 3 billion years old. We know that evolution shows that our species will probably not be around (or, at least, recognisable as 'Us') in less then another half a million years. In fact, the way we are going, our survival beyond the next few hundred years is highly doubtful. Talk about us 'escaping to Mars' in billions of years' time is just rubbish. The scientists are talking utter bollocks, They must know that they're talking utter bollocks, but they do it anyway. Could that be because there's a pay-check involved?
We also often hear scientists saying that they 'believe' this or that theory. A scientist should never 'believe' anything. It is their role to always question any hypothesis. The scientific method is to suggest an 'Hypothesis' (which is only ever a 'best guess') and then to test and explore that hypothesis in an attempt to prove or disprove that guess. No proper scientist should ever assume an outcome of such enquiry, or be committed to one outcome over another. The facts are the facts and that's all a scientist should be interested in. In the field of physics, so many 'beliefs' have been exploded in the last few decades, and doubtless that process will continue. The history of science shows, time and time again, how 'established' science has rejected and vilified those who challenge that establishment. Time and time again, the 'established view' has been overthrown, only after an ugly and un-edifying public battle in which egos and 'reputations' made sure that the truth always took a back-seat to individual belief and ambition.
Scientists are like any other group of people, but they lay claim to something others groups do not lay claim to: Scientific Objectivity. Rarely do we see this in public practice.
Trust the scientists?