When we first learn about atoms, we learn that the simplest has one electron buzzing around one proton, aka hydrogen. But it turns out there's an atom that's even simpler than this. It's called ...

These chemical oddities may explain why Earth seems to be deficient in certain elements — and could prove useful in catalysts ...

There is no measurement that can directly observe the wave function of a quantum mechanical system, but the wave function is still enormously useful as its (complex) square represents the probability ...