英语新闻听写 哈勃望远镜惊人新发现（在线收听）

哈勃望远镜惊人新发现

A 2015 image from the Hubble Space Telescope reveals a faint moon orbiting the dwarf planet Makemake.

通过哈勃空间望远镜，科学家于去年发现卫星环绕矮行星鸟神星。

The moon was spotted as a dark smudge orbiting Makemake.

昏暗模糊的卫星正环绕鸟神星。

Researchers estimate that the moon is roughly 160 kilometers wide;

据研究人员预测，该卫星直径约160千米；

its home world, by comparison, is about 1,400 kilometers across.

而相比较而言，鸟神星直径约1400千米。

The moon’s motion can help researchers determine the mass of Makemake,

通过卫星轨迹，研究学家可以对鸟神星的质量进行进一步计算，

one of the largest known bodies in the Kuiper belt.

鸟神星也是已知柯伊伯带中体积最大的天体。