Ceres is the largest object in the asteroid belt between Mars and Jupiter.
谷神星是位于火星和木星之间小行星带中最大的天体。
NASA's Dawn spacecraft orbited and studied
Ceres for several years.
美国宇航局的“黎明号”探测器曾环绕并研究谷神星数年。
The discovery of water on
Ceres suggests that it may have once harbored life.
在谷神星上发现水的迹象表明它可能曾经拥有生命条件。
Ceres has a diameter of about 940 kilometers, making it roughly the size of Texas.
谷神星直径约为940公里，大小大致相当于美国得克萨斯州。
Astronomers classify
Ceres as a dwarf planet due to its spherical shape and large size.
天文学家由于其球形特征和较大的体积将谷神星归类为矮行星。
The surface of
Ceres contains numerous craters, including the Occator crater with its bright spots.
谷神星表面包含众多撞击坑，其中包括具有明亮斑点的奥卡托撞击坑。
Scientists believe that
Ceres might have an icy mantle and a rocky core.
科学家认为谷神星可能拥有冰质的地幔和岩石核心。
Observations of
Ceres have revealed evidence of cryovolcanism, indicating geologic activity in its past.
对谷神星的观测揭示了冰火山活动的证据，表明其过去存在地质活动。
Ceres was first discovered by Italian astronomer Giuseppe Piazzi in 1801.
谷神星于1801年由意大利天文学家朱塞佩·皮亚齐首次发现。
The orbit of
Ceres takes approximately 4.6 Earth years to complete one full revolution around the Sun.
谷神星围绕太阳完成一次完整公转所需的时间大约为4.6个地球年。
Besides, the company recently acquired Ceres organic silk certification, an industry standard, for its mulberry trees and silkworm farms, becoming the first Chinese silk company to use regenerative principles.
此外，该公司最近为其桑树和蚕养殖场获得了Ceres有机丝绸认证，这是行业内的一个标准，成为首家采用再生原则的中国丝绸公司。
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