天体要素在古代和中古时代被认为是充满于月球空间并且是构成恒星和行星的元素 The element believed in ancient and medieval civilizations to fill all space above the sphere of the moon and to compose the stars and planets.
贝特，汉斯·阿尔布雷希生于1906德裔美籍物理学家。因其对恒星能量产生的研究而获1967年诺贝尔奖 German-born American physicist. He won a1967 Nobel Prize for research on the energy production of stars.
有许多恒星比我们的太阳还要大。 There are many suns larger than ours.
每一星系都有无数的恒星。 Each galaxy contains myriads of stars.
