Coherent elastic neutrino-nucleus scattering (CEvNS) is a process in
which a neutrino scatters off an entire nucleus. It is tremendously
challenging to detect, due to the tiny nuclear recoil. CEvNS was
measured for the first time by the COHERENT collaboration using the
unique source of neutrinos at the Oak Ridge National Laboratory
Spallation Neutron Source. This talk will describe the physics reach
of CEvNS, as well as COHERENT's measurements, status and future plans.