A black hole is called that because when viewing it with the naked eye (visible light spectrum), the phenomenon appears to be a 2-D "hole" in space (or spacetime.) An actual Black Hole is much more...
When a huge star dies it's core becomes so dense it's own gravity starts to crush and collapse inwards the heart of a black hole is called the (Singularity)
When a Super Giant or Hyper Giant Star nears the end of it life, it goes through a process of shedding layers of itself, a little like onion layers cast off one after the other. When it reaches a...
A black hole is a singularity, an incredibly large amount of mass reduced to a very small volume, essentially a single point. At that compression, the ordinary rules of atoms and motion cease to...
The intense gravity from a black hole or a neutron star will pull in dust particles from a surrounding cloud of dust or a nearby star. As the particles speed up and heat up, they emit x-rays. So the...