  Laboratory experiments can shed light on theories of new physics introduced
in order to explain cosmological mysteries, including the nature of dark energy
and dark matter. In this article I will focus on one particular example of
this, the chameleon model. The chameleon is an example of a theory which could
modify gravity on cosmological distance scales, but its non-linear behavior
means that it can also be tested with suitably designed laboratory experiments.
The aim of this overview is to present recent theoretical developments to the
experimental community.
