Thomas Kuhn, the well-known physicist, philosopher and historian of science, was born 94 years ago today. He went on to become an important and broad-ranging thinker, and one of the most influential ...

Do we live in a multiverse? Daydreamers and science-fiction authors have pondered parallel universes for as long as scientists have described our own. Our universe contains everything we know — from ...

The philosopher Karl Popper pointed out that most early practition­­ers of science were justificationists. They didn’t just seek out any old knowledge; they were on the hunt for justified knowledge.

The proponents of the idea of a global climate crisis are fond of saying that when it comes to climate change, “the science is settled.” But in fact that is just a way of telling their opposition to ...