Stars Why do neutron stars have magnetism? Is the magnetism of a neutron star the same as a Child’s toy magnet? If a neutron star emits photons, where would they come from, and would they not experience the Zeeman effect? Why are neutron stars called stars?
Exotic Objects, Stars How many solar masses must a star be to end up a black hole (before normal mass loss during its life)?
Galaxies Do all spiral galaxies rotate in the same direction, and how can I tell the rotation from a photo?
