Starship Asterisk*

Auroras have long been objects of beauty and adoration. Why is it necessary to "accurately predict" their color and intensity? Do they cause the planet any harm? Is there some meteorlogical, financial or military benefit to be derived from predicting auroras? Like most people, I suppose, I...

What would happen to a planet similar to Earth located in NGC 2841 if a plume of multimillion degree gas passed over it? Does the Milky Way Galaxy emit plumes of such gas? If so, could it be a cause of global warming? Just curious.

In addition to sunset/moonset, we are seeing a source of global warming. And that is just one plume of industrial pollution out of thousands.

As a boy in the 1950's I remember going to a barber shop that had mirrors along two walls that faced each other. As I sat in either the waiting chair or the barber's chair, I marveled that I could see my image reflected countless times in the mirrors. It seems possible that the rising sunlight may h...

Happy Birthday, APOD, and thanks for the fantastic voyages you have provided. Keep up the good work.