Regarding Dennis D. Morgan’s letter, “Old days were better in many ways” (April 30): Mr. Morgan believes that global warming is a myth, yet offers us no evidence to support this. Global warming may be ...

The basic definition of "truth," according to Merriam-Webster's handy dictionary, is "the body of real things, events and facts." But what does that actually mean? Next week, On Point will air a ...

Every so-called truth finally expresses no more than the power of some individual or group to impose its view of things on everyone else. So runs a common strain of postmodernist thinking. In the more ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...