Scientists have introduced a new Big Bounce model that disputes the Big Bang, suggesting the universe may have cycled through earlier cosmic eras.

In defining the word "theory," Merriam-Webster.com specifically identifies the challenges associated with the word: there are two senses of theory which are sometimes troublesome. These are the senses ...

For decades, scientists have relied on a popular idea referred to as cosmic inflation to explain how the universe began and why it looks the way it does today. This theory suggests the universe ...

This week marks the three year anniversary of the Theory of Knowledge Blog. I have made almost 100 posts on a wide variety of different topics and have arranged them below around major themes. (The ...

This article was originally published on Backchannels, a scholarly blog by the Society for Social Studies of Science. Alison Kenner, PhD, is an associate professor of politics and of science, ...

The particles and antiparticles of the Standard Model obey all sorts of conservation laws, with fundamental differences between fermionic particles and antiparticles and bosonic ones. The final piece ...