Is it a Bird? Is it a Plane? No, it’s a Super-Earth!
When you look up at the night sky, all of the stars look the same. However, they actually come in different sizes and colours. The colour of the star depends on the temperature of the surface of the star. Despite what you may think, blue stars are much hotter than red stars! In fact, red stars are the coldest! The smallest red stars, which are called ‘red dwarfs’, are by far the most common type of star in our Milky Way Galaxy.
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ESO/L. Calçada
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