India, Feb. 7 -- It was the first class of the astrophysics course that I was teaching. As an introduction to the history of astronomy, I mentioned the fact that till a few centuries ago, astrology was indistinguishable from astronomy. But now, we treat astronomy as a science while astrology is not a science. One of the students immediately took issue with this arguing that astrology was also a science. What was more disheartening was that there were many others in the class who agreed with him. This was a class of students who had spent five years studying science and some of them would go on to have careers as teachers and scientific researchers....