|
Most of intergalactic space would be largely empty, with the exception of the occasional hydrogen molecule or other atom. If there had been a recent, ie. last couple of billion years, nearby collision between galaxies, there would be isolated pockets of ejected stars. Imagine if we were unfortunate to be one of these, if you looked into the sky you would see nothing but a handful of other orphaned stars, probably thousands of light years away and the odd galaxy. It would be a very lonely place.
Galaxies do produce magnetic fields, if they have an active core they produce massive fields.
|