This galaxy has no dark matter

Ghost Galaxy Has 99% Dark Matter, No Stars

Why does this galaxy have no dark matter?

A trail of dark-matter-free galaxies from a bullet-dwarf collision

Dark Matter and Dark Energy: The Mystery Explained (Infographic)

NASA Viz: Missing Dark Matter

Chandra :: Field Guide to X-ray Astronomy :: Dark Matter Mystery

We still don't know what dark matter is, but here's what it's not

The puzzle of the galaxy with no dark matter Instituto de Astrofísica de Canarias • IAC

Mystery of Galaxy's Missing Dark Matter Deepens - NASA Science

Two Unusual Galaxies Shake Up the Dark Matter Debate, Again