Deuterium abundance and cosmology
  We review the status of the measurements of the deuterium abundance from the local interstellar medium to the solar system and high redshifts absorbers toward quasars. We present preliminary results toward a white dwarf and a QSO. We conclude that the deuterium evolution from the Big-Bang to now is still not properly understood. 
A. Vidal-Madjar (1), R. Ferlet (1), M. Lemoine (2) ((1) IAP, (2) Univ.   Chicago)