Starship Asterisk*

Curious about the term "most violent" when describing an astronomical area. Sounds like something from the History Channel.

I would think that there might be star forming regions near a black hole, which might qualify as "even greater most violent".

Does it matter whether the rocks are igneous or sedimentary? The APOD is breathtaking, especially with Mars shining so brightly in a non-light-polluted sky.

For people like me who come to this site to find great photography and good science, yes, it does matter.