A long time ago (at least a billion years) two galaxies far far away (17.3 million light years) ran into each other dead center to merge into what we see today, the Black Eye Galaxy (M64). Their merger caused a rather unique feature among spiral shaped galaxies. M64 can be defined as a galaxy within a galaxy.

I've increased the contrast of colors to bring out this feature. The inner blue-tinted region rotates in one direction while the outer red-tinted region rotates in the opposite direction. This, as well as the merger itself, has created a sort of "backwater" of dust that resembles a black eye.

Recommended for you

(0) comments

Welcome to the discussion.

All comment authors MUST use their real names. Posts that cannot be ascribed to a real person
will not be moderated.

Keep it Clean. Please avoid obscene, vulgar, lewd, racist or sexually-oriented language.
Don't Threaten. Threats of harming another person will not be tolerated.
Be Truthful. Don't knowingly lie about anyone or anything.
Be Nice. No racism, sexism or any sort of -ism that is degrading to another person.
Be Proactive. Use the 'Report' link on each comment to let us know of abusive posts.
Share with Us. We'd love to hear eyewitness accounts, the history behind an article.