The Blue Marble

The picture of Earth is sometimes called the Blue Marble. Credit of this discovery goes to NASA . When I wanted to write this post I kept asking myself some funny questions like, how old is Earth? For how long has it been in existence? What is it made of? What makes it different and special from other planets? Why is it the only planet that is habitual? These and more were the questions that was playing in my thoughts. I decided to write this post with the mind that the ordinary mind can have some information about this Earth without having to battle with many scientific words.

The Earth is defined as as the planet on which we live, the third planet from the sun, it went further to inform us that the Earth was formed at the same time as the sun, which means they both ( the sun and the Earth may likely have the same age). To buttress more on this point the Bible of the christains states that God created the heavens and the Earth, the book of Genesis 1:1. Scientist have been able to tell us how old the Earth is likely to be by the turning of the rocks on the cover of the Earth.

The Earth consists of an inner core made up iron and nickel, an outer core of liquid metal, a mantle and on the outside a crust. According to researches done and information released to us by the National Aeronautics and Space Administration, they made us to know that the earth has seasons because it axis is fitted also it's the only planet known to have large amounts of liquid water which is essential for life, the makes up 71 percent of the Earth surface. The Earth's atmosphere is 77 percent Nitrogen, 21 percent Oxygen, with traces Argon, Carbondioxide and Water. Earth is made up of compound systems that can most times be unpredictable. Air, water,land including humans come together in a combined force to create an changing world.

Understanding our Earth, from the frontline of space provides the opportunity to see Earth as a whole. Various satellite and Space craft includding the Mars River and Casino which hails from Saturn provides perspectives of Earth from others in the solar system.