Astronomers identify the 514 most powerful objects in the Universe – they don’t know what 65 of them are

[link to www.zmescience.com]

“The idea is to have some sort of bridge catalogue between the typical catalogue done by Fermi… which contains thousands of sources, and the domain of the Cerenkov telescopes that have been operating over 20 years,” lead author of the new catalogue, David Paneque of the Max Planck Institute for Physics in Munich, Germany, explained.

But, as always with this kind of study, they also stumbled upon “unassociated sources”. So what are these unknown objects?

“What that means is that we know it’s a gamma-ray source, but we don’t know what kind of source,” he explained. “We can’t associate it with a radio object, with an optical object. It might be actually a new class of object – something that only emits in gamma rays.”

"They could be things like dwarf galaxies composed of dark matter – things we don’t really know about, and astrophysicists would love to know more of. It could be unidentified quasars, but if this is the case, why haven’t astronomers identified them already?"

Interesting..I Bet Stephen Hawking knows..He seems to know everything..<sarcasm>