To learn about the IVS and what we do, please visit these pages, which will be expanded and updated frequently:
VLBI: frequently asked questions
Geodesy with VLBI
Please also see IVS Live: http://ivslive.astrophy.u-bordeaux.fr/, designed, developed and hosted by the Laboratoire d’Astrophysique de Bordeaux (University of Bordeaux, CNRS)