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Did you know that you are made of star stuff? It’s true! Many of the atoms in your body were created in other stars. It’s one of the most exciting discoveries in science ever made. When the Universe was very young, billions of years ago, there were only very simple atoms. Mostly hydrogen and helium....
You live on a planet, called Earth. Together with seven other planets, Earth circles around the Sun. As far as we know, Earth is the only planet in our solar system where life exists. Life needs a planet to live on. And life needs a star to get energy from. Without the Earth or without the...
The Earth is a planet, orbiting the Sun. The Sun is a star – a giant ball of hot gas, emitting light and heat. The Sun is one of the few hundred billion stars in our Milky Way galaxy. And the Milky Way is one of the hundred billion or so galaxies in the Universe. Astronomers...
The Sun is a star. Not many people know that. It’s a star like all the other stars in the night sky. Or, put differently: all the stars in the night sky are suns like our own. So why are the stars tiny pinpricks of light, while the Sun is so large, bright and hot? It’s...