# How do molecules scatter light?

I've read that during Rayleigh Scattering, a photon passes through a molecule and the photon's electric field creates a dipole in the molecules. But what I don't understand is what happens next. How do the molecules physically "scatter" the light? For example, the sky is blue because blue light gets scattered by the gas molecules in the atmosphere. But what physical process occurs that molecules can change the path of photons?

Raleigh scattering is the elastic scattering of light on particles/molecules much smaller than the wave length. The electric field of incident light excites dipole oscillations which emit (like a dipole antenna) electromagnetic radiation (a photon) with the same frequency but, in general, a different (random) direction. The intensity of Raleigh scattering is proportional to $f^4$, the 4th power of the light frequency, just like the electromagnetic wave emission intensity of an oscillating electric dipole.