NASAのインスタグラム(nasa) - 9月21日 05時18分

Looking for a dramatic story? 👀You might want to redirect your attention from Hollywood’s stars to the real thing. From birth to death, these burning spheres of gas experience some of the most extreme conditions our cosmos has to offer.All stars are born in clouds of dust and gas. In these stellar nurseries, clumps of gas form, pulling in more and more mass as time passes. As they grow, these clumps start to spin and heat up. Once they get heavy and hot enough (like, 27 million degrees Fahrenheit or 15 million degrees Celsius), nuclear fusion starts in their cores. This process occurs when protons, the nuclei of hydrogen atoms, squish together to form helium nuclei. This releases a lot of energy, which heats the star and pushes against the force of its gravity. A star is born.Credit: NASA/@NASASolarSystem#Stars #Dramatic #SayWhat #NASA #Astronomy #StarSuff

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