There are many worlds and many systems of Universes existing all at the same time, all of them perishable.

— Anaximander 546 BC

M82 Galaxy's Mysterious Radio Waves by Linda Moulton Howe

http://www.earthfiles.com/news.php?ID=1705&category=Science

I was listening to the radio program Coast to Coast this morning and heard about a mysterious object in M82.  http://www.coasttocoastam.com/   I believe this program often has off the wall articles, but the story I've linked is about astronomy.  The link above cuts straight to the story.