The Universe is extremely vast. It consists of space, energy and matter. In this unwrap space there are galaxies, solar systems and other space bodies orbiting around each other. Such space bodies in solar systems are stars, planets, asteroids, moons, meteors and comets.
GALAXIES. A galaxy consists of a numeral of a solar systems. It can also be referred to as a compilation of a great number of stars. Our sun is one of the stars in the Galaxy. The stars are very remote from each other. The distance between the stars is so vast that is it calculated in light years. A light year is a distance which is enclosed by light in a year. Light travels at the speed of 300,000 kilometers per second.
THE SOLAR SYSTEM. There are a lot of solar systems in the galaxies. Our solar system consists of the sun, eight planets and lots of asteroids, meteors and a comet. Our solar system is situated in galaxy, known as the Milky Way. All the planets and space bodies of our solar system rotate around the sun.
STARS. There are millions of stars in the cosmos but only about a few thousands are evident from the earth. Stars are giant balls of hot gases mostly hydrogen and helium. Our sun is the closest star to the earth. The sun is the biggest foundation of heat and light for us. It is 149.6 million km from the earth. The sun is not the biggest star of our Galaxy but there are still others that are very remote away from us. The biggest star is Sirius.
THE PLANETS AND THEIR MOONS. There are eight planets and a numeral of moons in our solar system. The moons path around the planets, and the planets orbit around the sun. Every planet has its own orbit at some distance from the sun. Different planets have dissimilar number of moons, some have none.
COMETS. Comets are the most gorgeous objects in the sky. They consist of a top made of dust and ice and , a tail of shiny, bright particles of gas. The tail always points away from the sun. Like planets, they also go around the sun, but their orbits are very different and much larger, usually comets can take between anywhere 3.5 and 10,000 years to complete their orbit.
METEORS. Sometimes shooting stars can be seen as the strips or flashes of light in the night. They are not actually stars but meteors passing through the earth’s atmosphere. Meteors are pieces of rock debris which while passing through our atmosphere turn into white hot and burn away.
ECLIPSES. The moon orbits around the earth while the earth orbits around the sun. Sometimes during the revolution, the moon and the earth form a line with the sun. When this happens an eclipse occurs, there are two types of eclipses :
1. Lunar Eclipse 2. Solar Eclipse.
THE LUNAR ECLIPSE. A Lunar eclipse happens when the earth moves between the sun and the moon. The earth hunks the sunlight from reaching the moon; therefore the shadow of the earth can be seen on the moon, this is described a lunar eclipse.
THE SOLAR ECLIPSE. In a solar eclipse, the moon moves among the sun and the earth. When it happens, the path of the sunlight gets blocked. This is called a solar eclipse. The sky slowly gets shady, when the moon and the sun are in ideal line and the sunlight gets totally blocked. It is called total eclipse. Such event is very unusual; most people knowledge this event one time in the life time.