Откройте для себя космос! Каждый день публикуется новое изображение или фотография нашей удивительной вселенной, а также краткое объяснение, написанное профессиональным астрономом.
Изображение предоставлено: НАСА, ЕКА, CSA, STScI; Д. Милисавлевич (Университет Пердью), Т. Темим (Принстонский университет), И. Де Лооз (Университет Гента)
Пояснение: Массивные звезды в нашей галактике Млечный Путь живут захватывающей жизнью. При разрушении огромных космических облаков их ядерные печи воспламеняются и создают тяжелые элементы в ядрах. Всего через несколько миллионов лет обогащенный материал самых массивных звезд выбрасывается обратно в межзвездное пространство, где звездообразование может начаться заново. Расширяющееся облако обломков, известное как Кассиопея А, является примером этой заключительной фазы жизненного цикла звезды. Свет от взрыва сверхновой, создавший этот остаток, был впервые замечен на небе планеты Земля около 350 лет назад, хотя этому свету потребовалось 11 000 лет, чтобы достичь нас. На этом четком снимке NIRCam, полученном космическим телескопом Джеймса Уэбба, видны все еще горячие нити и узлы в остатках сверхновой. Беловатая, похожая на дым внешняя оболочка расширяющейся взрывной волны имеет около 20 световых лет в поперечнике. Серия световых отзвуков от катастрофического взрыва массивной звезды также видна на детальных снимках окружающей межзвездной среды, сделанных Уэббом.
<в центре> Завтрашний снимок: световой уик-энд
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