Hubble found Dark matter

Well, not exactly. But something like that. Astronomers have found facts that could help explaining where the dark matter is.
For those who know more about that, this will be an important discovery. This is the first proof that there should be dark matter out there and it explains how it behaves.
You can read more on this site that explains in detail what really happened in that picture and why is it so important. Or you can find out more about this on Hubble official website.