Following the light of the sun, we left the Old World.

— Inscription on Columbus' caravels

Einstein-Rosen bridge

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.