Relativistic MOND as an alternative to the dark matter paradigm
  Milgrom's Modified Newtonian dynamics (MOND) provides an efficient way to
summarize phenomenology of galaxies which does not lean on the notion of dark
matter; it has great predictive power. Here I briefly review MOND as well as
its implementation as a nonrelativistic modified gravity theory, AQUAL.
Gravitational lensing and cosmology call for a relativistic gravity theory
different from general relativity if dark matter is to be avoided. In recent
years such a theory, T$e$V$e$S, has emerged from the marriage of AQUAL with the
timelike vector field of Sanders. I discuss its structure and some of its
successes and shortcomings.
