APOD: 2008 June 6 - Two Armed Spiral Milky Way The latest theory on the structure of our Milky Way. Be sure to mouse over the picture (after clicking through) to see where our sun sits in this picture.

APOD: 2008 June 6 - Two Armed Spiral Milky Way

The latest theory on the structure of our Milky Way. Be sure to mouse over the picture (after clicking through) to see where our sun sits in this picture.