The forces of rotation caused red hot masses of stones to be torn away from the Earth and to be thrown into the ether, and this is the origin of the stars.

— Anaxagoras 428 BC

Bubble

By marzulloj at Sat, 11/05/2011 - 9:38am

The bubble nebula between Cepheus and Cassiopea this late October. One hour image in H-Alpha light. Twenty minutes each in Red Green and blue light.

Bubble