Earth's Role As A Body In Space

Our sun emits energy in the form of nuclear fussion to allow us on Earth to receive the heat. Nuclear fussion is the joining of atoms. Our sun has four parts called the solar interior; the visible surface or photosphere; and two atmospheric layers - the chromosphere and corona.

Earth's role as a body in space

There are three different types of galaxies. They are sprial galaxy, irregular galaxy and ellicptical galaxy. We can tell the different galaxies apart from each other by the age of the stars, the shape of the galaxy and the size of the galaxy.

Galaxy

Our Amazing Sun

Videos are from Discovery Ed