Science & Environment
From physics to biology to neuroscience, channel your inner Mr. Wizard as you watch these talks. Join NASA astronauts, scientists and engineers on a brand new adventure each week — all you need is your curiosity.
Scientific American maintains a strict policy of editorial independence in reporting developments in science to our readers. Explore our digital archive back to 1845, together with articles by more than one hundred fifty Nobel Prize winners.
For Kuhn, acceptance or rejection of a paradigm is a social process as a lot as a logical course of. The belief that scientific theories ought to and do characterize metaphysical actuality is known as realism...