  We study the scattering properties of optical dipole-mode vector solitons
recently predicted theoretically and generated in a laboratory. We demonstrate
that such a radially asymmetric composite self-trapped state resembles ``a
molecule of light'' which is extremely robust, survives a wide range of
collisions, and displays new phenomena such as the transformation of a linear
momentum into an angular momentum, etc.We present also experimental
verifications of some of our predictions.
