Project SEE (Satellite Energy Exchange) is an international effort to organ
ize a new space mission for fundamental measurements in gravitation, includ
ing tests of the equivalence principle (EP) by composition dependence (CD)
and inverse-square-law (ISL) violations, determination of G, and a test for
non-zero G-dot. The CD tests will be both at intermediate distances (a few
metres) and at long distances (radius of the Earth, R-E). Thus, a SEE miss
ion would obtain accurate information self-consistently on a number of dist
inct gravitational effects. The EP test by CD at distances of a few metres
would provide confirmation of earlier, more precise experiments. All other
tests would significantly improve our knowledge of gravity. In particular,
the error in G is projected to be less than 1 ppm. Project SEE entails laun
ching a dedicated satellite and making detailed observations of free-floati
ng test bodies within its experimental chamber.