how is a neutron star diffrent from a black hole
A neutron star is a dense remnant of a massive star that has undergone a supernova explosion, collapsing to a small size (approximately the size of a city) but with a mass of about 1.4 times that of the Sun. It is composed mostly of neutrons and is held together by nuclear forces. Neutron stars are extremely hot and emit radiation, including X-rays.
On the other hand, a black hole is formed when a massive star collapses under its own gravity to a point of infinite density, known as a singularity, surrounded by an event horizon from which not even light can escape. Black holes have strong gravitational forces that can bend space and time, and they are so dense that they create a region of space where the laws of physics as we know them break down.
In summary, while both neutron stars and black holes are remnants of massive stars, the key differences lie in their size, mass, and the presence of an event horizon in black holes that makes them unique in terms of their gravitational properties.