The Dark Matter Data Bonanza - Technology Review

The Dark Matter Data Bonanza - Technology Review: There is a way to separate the dark matter signal from all this background, however. As the Sun moves through the galaxy, it must also be moving through a sea of dark matter. And as the Earth moves around the Sun, it will plough more quickly into the sea of dark matter at some times of the year and at other times more slowly.

So the dark matter signal ought to have an annual modulation.

This is exactly what the DAMA/LIBRA people say they can see. The dark matter signal peaks in May and then drops away. And this no weak tentative signal--the DAMA/LIBRA people say the statistical evidence is so clear that there is almost no possibility that they are mistaken.