The pseudoscience phrenology swept the popular imagination, and its practitioners made a mint preying on prejudices, gullibility, and misinformation.

"I grew up in New Jersey in the 1970s and that experience gave me everything I needed to become a skeptic."

The paper does not prove the existence of dark matter, but it mostly eliminates a rival theory called Modified Newtonian Dynamics.

How to figure out the right amount of time for any project.

In the early stages of the hot Big Bang, there were only free protons and neutrons: no atomic nuclei. How did the first elements form from them?