Dark matter 'beach ball' unveiled (above and below Galaxy)

[7redorbs]

As Above, so Below? We at CONSPIRACY.CO sure think so. Most of the matter is anyway. Question: Is it a reflection?

The giant halo of dark matter that surrounds our galaxy is shaped like a flattened beach ball, researchers say.

It is the first definitive measure of the scope of the dark matter that makes up the majority of galaxies' masses.

The shape of this "dark matter halo" was inferred from the path of debris left behind as the Sagittarius dwarf galaxy slowly orbits the Milky Way.

A team of US astronomers announced the findings at the American Astronomical Society meeting in Washington.

BBC News - Dark matter 'beach ball' unveiled

[Cynar]

Not a reflection, dark matter (or more specifically WIMPs) only interact via gravity. They therefore try and orbit their centre of mass. They cannot however radiate energy to slow down, therefore fly right through that point. It's a bit like a pendulum, only their it's self evident why it spends equal time each side of it's rest position.
Now all they've got to do it prove the pesky stuff exists. Personally my money's on MOND though a lot more data is needed to confirm either.