In This Image, Two Photons Interact. Here's Why It's Groundbreaking.

Normally, photons want nothing to do with one another. Light waves just pass through each other like ghosts. But now, for the first time ever, scientists at the University of Vienna have coaxed a strong interaction between two single photons. It's an achievement that opens up radical new possibilities for a number of… » 11/04/14 12:30pm 11/04/14 12:30pm

The Webcomic Guide to Black Body Radiation and the Colors of the Stars

Earlier this year, Jorge Cham of the webcomic PhD Comics explained the Higgs Boson by combining narration from physicists with his own artwork. In his latest video, The Fingerprint of Stars, Jon Swift, Ben Montet, and Melodie Kao of CalTech's John Johnson Exoplanets Laboratory explain why different stars appear to be… » 12/15/12 10:30am 12/15/12 10:30am