Muons: The Subatomic Particles Shaking Up the World of Physics

First discovered in the late 1930s, muons are passing through you and everything around you at a speed close to light, as cosmic rays strike particles in our planet's atmosphere. So what are muons and how are they informing the new physics?

How Vaccines Work

Vaccinations are largely viewed as the most successful medical advancement in the history of public health. But who came up with the idea for vaccines? And do we give too many shots now?