Grand Unified Theory?

Four fundamental forces have long been recognized in physics: the electromagnetic force, the strong nuclear force (that keeps atomic nuclei together), the weak nuclear force (that is behind radioactivity), and gravity. So far, physicists have managed to produce a "Standard Model" that unifies the electromagnetic and weak forces into the electroweak force. But so far, gravity has eluded all attempts to fit into the theory. The elusive search for a means to unify all four forces into a "Grand Unified Theory" is often called the "Holy Grail" of theoretical physics.

Now, a physicist-turned-surfer thinks he may have hit upon an elegant solution based on a complex but highly symmetrical mathematical pattern. Read more here. I recommend watching the animation of the pattern's rotation even if the math eludes you (as it does me!).

Newly-Visible Comet

Want to see a comet?

Skywatchers throughout the Northern Hemisphere report the newly visible Comet Holmes is a remarkable sight even under city lights.

The comet, described in glowing terms by many observers, should continue to be visible to the naked eye for at least the next few weeks. more...