Sun

Our sun is 99% of the total mass of the solar system. It’s this energy from the sun’s thermonuclear reactions that heats the Earth from solar radiation.

Our sun is a main sequence star. This just means that it burns hydrogen into helium and goes through this “main sequence” for about 95% of its life span.

Today, we’re exploring facts about the sun. First, you have to realize the enormous size of the sun. It’s so big that nearly 1300 Jupiters can fit the sun!

Fusion reactions power the sun. By fusing hydrogen to helium, the sun releases vast amounts of energy towards Earth. Then, sun fusion reaction heats Earth.