Define the following terms: Solar System, Nuclear fusion, Nuclear reaction, Core Fusion

Here are the definitions for the terms you've provided:

1. Solar System
The Solar System is the gravitationally bound system of the Sun and the objects that orbit it, either directly or indirectly. This includes the eight planets, their moons, dwarf planets, asteroids, comets, and other small bodies.

2. Nuclear Fission
Nuclear fission is a nuclear reaction in which the nucleus of an atom splits into two or more smaller, lighter nuclei, often producing gamma photons and releasing a large amount of energy. This process is typically initiated by bombarding a heavy nucleus with neutrons.

3. Nuclear Fusion
Nuclear fusion is a nuclear reaction in which two or more light atomic nuclei combine to form a single, heavier nucleus, releasing a tremendous amount of energy. This process is what powers stars, including our Sun.