Deep inelastic scattering at the energy frontier

An introduction is given to the physics with the Large Hadron electron Collider (LHeC), a new generation ep and eA collider exploring the accelerator energy frontier with a prospect to the FCC-he. The LHeC is designed to become the finest new microscope for substructure of matter worldwide exploring new physics, and the next accelerator to study the Higgs boson, which will enable the LHC to be transformed into a precision physics facility of increased value.