In addition if this is so, these galactic nuclei must contain bodies of a huge mass and unknown nature.

The galactic nucleus may be an inhospitable place for more reasons than one.

The disk reached within 60 light-years of the galactic nucleus.

There were many others in sight, most closer in toward the galactic nucleus.

"So the only reasonable place to put them was in galactic nuclei."

What they have in common, astronomers say, are very active galactic nuclei.

In the center of a galactic nucleus, the supernova is not quite as easy to dismiss.

But a new survey of active galactic nuclei suggests that this model may need some serious revision.

This emission is actually quite common for active galactic nuclei.

He works on active galactic nuclei and the theory of dust tori.