MÉTRIS , Gilles

The MICROSCOPE mission tested the Weak Equivalence Principle (WEP) with an unprecedented precision of order 10-15 , two orders of magnitude better than the previous best lab experiments. While the WEP, the cornerstone of General Relativity (GR), does not sway, the decade-long problems faced by fundamental physics stay still: how can we unify GR...

MICROSCOPE is a space mission launched in 2016 that aims to test the validity of the Equivalence Principle (EP), the main postulate of General Relativity (GR), with a precision never reached before (Touboul et al. (2001)). EP states that two bodies of different compositions and masses fall with the same acceleration in the same gravitational...

The aim of the MICROSCOPE space mission is to test the weak equivalence principle (WEP) with a precision of 10−15, 100 times better than on-ground experiments. The WEP violation signal that we look for in flight has a particular frequency signature and must be extracted from the measurement of accelerations dominated by a colored noise...