{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-572d6a42.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-f4d0de30.css\" media=\"all\" /\u003e\n\u003cdiv data-title='Life Cycle of Stars | GCSE Physics | Doodle Science' data-url='/boclips/videos/5d6910c3eeda966590d7398b' data-video-url='/boclips/videos/5d6910c3eeda966590d7398b' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nLife Cycle of Stars | GCSE Physics | Doodle Science\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30356165\" href=\"/search?publisher_ids%5B%5D=30356165\"\u003eDoodleScience\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eFollow me! Doodle Science teaches you high school physics in a less boring way in almost no time! GCSE Science Script: Stars initially form from clouds of dust and gas. The force of gravity makes the gas and dust spiral in together to...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eFollow \u003ca href='https://twitter.com/DoodleSci' target='_blank' rel='nofollow'\u003eme!\u003c/a\u003e Doodle Science teaches you high school physics in a less boring way in almost no time! GCSE Science Script: Stars initially form from clouds of dust and gas. The force of gravity makes the gas and dust spiral in together to form a protostar. As the gas and dust falls together, it gets hot. A star forms when it is hot enough to fuse hydrogen nuclei into to helium. The star then immediately enters a long stable period, where the heat created by the nuclear fusion provides an outward pressure to counteract the force of gravity pulling everything inwards. In this stable period it’s called a main sequence star and it lasts several billion years. Luckily for us our sun in about half way through it’s stable period. Eventually however, like everything, the star must die. It takes one of 2 courses, the boring way or the cool way. Stars that are about the same size as our sun tend to take the boring way out. When the hydrogen begins to run out they begin to fuse heavier elements all the way up to iron in its core. The star at this point swells into a red giant which is unstable and ejects it’s outer layer of dust and gas as a planetary nebula; leaving behind a hot dense solid core called a white dwarf. Told you it was boring. Stars much bigger than our sun such as Betelgeuse are big enough to take the much more interesting route. Once they run out of hydrogen they start to swell up too, into a red super giant. At this point they are making elements in their core up to iron but it’s when they explode in a supernova, that the heavier elements are formed that are found all over our planet. The exploding supernova throws out its outer layers of dust and gas into space leaving a very dense core called a neutron star or in some cases a black hole. 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