Two possibilities exist: Either we are alone in the Universe or we are not.
Both are equally terrifying.

— Arthur C. Clarke

Bubble In Cassiopea

By marzulloj at Sun, 09/01/2013 - 10:09am

The bubble nebula in Cassiopea, also known as Caldwell 11.

Two hours H Alpha exposure through a 5" refractor and Starlight express CCD camera.

Frozen in Time