The Earth's core is the innermost layer of the planet and is separated into two distinct parts: a solid inner core and a liquid outer core. Despite being extremely inaccessible, the core is a subject of extensive research because of its profound influence on Earth's geology, magnetic field, and heat flow.
Astronomy would be a lot easier if there were no clouds of gas and dust in space. There'd be no need for telescopes with the abilty to see through these thick veils. Alas, space is not only full of things we want to see, but full of things that get in the way.

