Apr. 9, 2007 From various independent observations, cosmologists
have established that ordinary matter, made of protons and
neutrons, accounts for only 4% of the total energy content of
the Universe. The remaining 96% is made of puzzling ingredients
Dark Matter and Dark Energy. Researchers at the Laboratory
Universe and Theories from the Observatory of Paris and the
Belgian Fonds de la Recherche Scientifique have recently
suggested the Abnormally Weighting Energy (AWE) Hypothesis to
describe the dark side of the Universe as a revolutionary aspect
of gravitational physics. In the past decade, cosmology has
entered an era of high precision, and in the future it may
become a unique laboratory to test theories of fundamental
physics, from gravitation laws to microphysics. Amongst the many
questions raised by this science in turmoil, one of the most
important is indisputably the one of the energy content of the
Universe. Knowing what the Universe is precisely made of, and in
which proportions, allows not only to d