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ما در سیاره ای به نام زمین زندگی میکنیم که بخشی از منظومه شمسی کهکشان ما است. اما منظومه شمسی ما کجاست؟ قسمت کوچکی از کهکشان راه شیریاست که به طور مفصل میتوانید در مورد آنها در مطالب منظومه شمسی و کهکشان راه شیری بخوانید. کهکشان مجموعه عظیمی از گاز، گرد و غبار، ستاره و منظومه شمسی مربوط به خود است. اجزای یک کهکشان توسط نیروی جاذبه کنار هم نگه دا...
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یک پیام ارسال کرد