If all of Earth's mass were compressed into a ball, it would result in a celestial object known as a neutron star. Neutron stars are extremely dense and compact remnants of massive stars that have undergone gravitational collapse.
To understand the density of a neutron star, it's helpful to consider that Earth's mass is approximately 5.97 × 10^24 kilograms. When this mass is compressed into a much smaller volume, the resulting object will have an incredibly high density.
The density of a neutron star can vary, but it typically ranges from about 10^17 to 10^18 kilograms per cubic meter. This density is extraordinarily high compared to any known matter on Earth. To put it into perspective, the density of ordinary solids, liquids, and gases on Earth is typically around 10^3 kilograms per cubic meter.
The immense density of a neutron star is a consequence of its mass being compressed into a small volume due to the powerful force of gravity. The matter in a neutron star is predominantly composed of neutrons, hence the name "neutron star." The intense gravity at its core causes the protons and electrons to merge, forming a dense sea of neutrons.
The density of a neutron star is one of the key characteristics that make it such an exotic and extreme astronomical object. Its properties, such as its gravitational field, intense magnetic field, and behavior under extreme conditions, have fascinated scientists and continue to be the subject of research and study.