The E-cat: cold fusion or scientific fraud?

What the “independent tests” really teach us, if we’re willing to look carefully.

There are no free quarks

Other particles — electrons, neutrinos, photons and more — can exist on their own. But quarks never will. Here’s…

Ask Ethan #56: Are black holes made of dark matter?

10 Things You Didn’t Know About The Anthropic Principle

Ghostly Physics

Why quantum entanglement spooked Einstein his entire life.

Why blue LEDs are worth a Nobel Prize

It might not sound impressive, but the physics behind it — and the power of its applications…

Throwback Thursday: The Foolish Fallacy of Cold Fusion

Ask Ethan #57: How will Black Holes die?

The densest, most massive objects in the Universe will live an awfully long time, but not…

Ask Ethan #59: Double the flame, half the time?

Messier Monday: The brightest Messier globular, M22