%0 Journal Article %T Lunar Laser Ranging Test of the Invariance of c: a Correction %A Bruchholz U. E. %J Progress in Physics %D 2010 %I HEXIS (Arizona) %X In the APOLLO test, a speed of light was found, which seemingly supports a Galileian addition theorem of velocities. However, the reported difference of 200 +/- 10 m/s is based on a simple error. The correct evaluation of this test leads to the known value of c within the given precision. This correction does not mean an impossibility of detecting spatial anisotropies or gravitational waves. %K APOLLO test %K velocity of light %U http://ptep-online.com/index_files/2010/PP-23-07.PDF