In science, an idea can be a theory and a fact at the same time. Stephen J. Gould put this well: In the American vernacular, “theory” often means “imperfect fact”—part of a hierarchy of ...

In the end, the theory no longer worked because it had become generally known. Many other facets of the relationship between forecasts relating to human actions and the actions themselves could be ...

Charles Darwin's theory of evolution ... this has been thoroughly debunked by scientific facts at the Centers for Disease Control and Prevention (CDC). Vaccines are essential for preventing ...

Some religious proponents feel that it is unfair to teach, as fact, scientific theories as an explanation for the origins of life and of the universe without also teaching the religious ...

But in fact, science is messy. It starts with a hypothesis, a theory about the way something works. One scientist finds evidence that seems to prove or disprove that idea. Others pile on ...