Alan the Alien says: Did you know that you are made out of stars? All the atoms that make your body were made when a star exploded millions of years ago!
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Nurseries are not just play areas for toddlers they are also be places where Stars are formed. Stellar nurseries are bright, colourful swirly clouds where a ginormous number of hydrogen atoms clump together. The huge force causes a tremendous amount of gravity. Which is so intense that if you were near by it would suck you in.That is really strong!
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As more and more of these atoms are forced together the gravity gets stronger and stronger, pulling even more hydrogen into a really tight ball. This makes the ball super hot, more than 75 thousand times hotter than a volcano! This causes a massive explosion to happen blasting loads of gases into space. The star is born.
The Supernova becomes... A NEUTRON STAR. This is so dense that a teaspoon full weighs more than Mount Everest!
OR if it’s really really big... A BLACK HOLE. This huge hole in space sucks everything into it even light! If you were to enter a black hole you would be travelling so fast that your feet and body would be stretched really thin like spaghetti!
When the Red Supergiant grows too big, it bursts in a huge, bright explosion called a Supernova. This single explosion releases more energy in a few minutes than our sun will in billions of years. BOOM!
This huge fiery ball is now three times larger than our sun. It will then burn bright until it has run out of fuel. For giant stars this takes a few million years - the bigger they are the shorter they live! When the star’s fuel begins to burn out the star expands and forms a red supergiant.