The solar core is made up of a really hot and dense gas (in the plasma state). The temperature of 15 million kelvins (27 million degrees Fahrenheit) keeps the core at a gaseous state.
It isn't. The inner core is solid, the outer core is liquid.
Lies
because they are very hard
After a high-mass star explodes as supernova and leaves a core behind, the core would become a neutron star or a black hole. If the core is less than 3 solar masses, it would become a neutron star; if the mass exceeds 3 solar masses, the core would continue to collapse, forming a black hole.
What the core of the star will become is dependent of the mass of the supergiant star. Stars between about 3 and 10 solar masses will generally become neutron stars. Stars above 10 solar masses generally become black holes.
the inner core is a solid
If sufficient mass remains after the supernova explosion, it will become a black hole.
The inner core is solid.
The inner core is the solid part
The Earth's inner core is solid, the outer core is liquid.
The inner core is the solid part of the core
There are two parts of the core: Inner and Outer. The outer core is liquid, the inner solid. The inner core is solid due to the pressure exerted on it, despite the excessively high temperature.