Overview of the Solar System
The Solar System contains all that revolves around the Sun which lies at the center of the system. It consists of comets, meteors, asteroids and the eight known planets - Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, the dwarf planets Pluto, Ceres and Eris, the satellites of the planets and dust.
A planet is simply a body that revolves around a star, is roughly spherical and does not share its orbit with other objects. Planets themselves reflect the light of the star but do not generate light itself. The Sun's gravity keeps the planets in orbit. According to the International Astronomical Union (IAU), a "dwarf planet" is defined as a celestial body within the Solar System that is in orbit around the Sun, has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a near-spherical shape, has not cleared the neighborhood around its orbit and is not a satellite.
A satellite is something that goes around an even larger something such as the Earth or another planet. Some satellites are natural, like the Moon, while other satellites are made by scientists and technologists to go around the Earth and complete tasks for example, taking accurate photographs of the Earth's surface and sending images to scientists to report any changes that occur around the world as well as about water, crops and various other resources. Such satellites are designed in such a way that they can send and receive television signals and send and receive telephone, fax, and computer communications. This helps to make communication by telephone, fax, internet, or computer with anyone in the world possible. There are still other satellites designed to observe the world's weather that sends signals through a computer to help scientists know what the weather will be. Furthermore, the weather forecaster will acquire its information about the weather from these scientists.
A comet is made up of dust, gas and ice. They are said to have come from the outer area of the solar system and consist mostly of leftover matter from the formation of the solar system. Meteors can be found almost anywhere in the solar system and are various sizes of celestial debris. They are just bits of dust or rocks from space that get pulled into the Earth's gravitational pull when they come to close to it. When meteors burn up, we can sometimes see a brief flash of light which is what we call "shooting stars." Sometimes, a meteor is big enough to weather its descent and land on Earth. It is then called a "meteorite." Asteroids are known as "minor planets" because they are made up of most of the same stuff as planets, but are much smaller. Although some asteroids can have sizes that compare to some Moons in our solar system, they are not Moons because they only orbit the Sun. Planetoids is another name for the largest asteroids.