  This article reviews recent developments in tests of fundamental physics
using atoms and molecules, including the subjects of parity violation, searches
for permanent electric dipole moments, tests of the CPT theorem and Lorentz
symmetry, searches for spatiotemporal variation of fundamental constants, tests
of quantum electrodynamics, tests of general relativity and the equivalence
principle, searches for dark matter, dark energy and extra forces, and tests of
the spin-statistics theorem. Key results are presented in the context of
potential new physics and in the broader context of similar investigations in
other fields. Ongoing and future experiments of the next decade are discussed.
