The largest member of the family in question is called Baptistina, and is some 40km (25 miles) across.
其中最大的家庭成员叫Baptistina，直径达40公里(25英里)。
Seen nearly edge-on, NGC 253 is only 13 million light-years away, the largest member of the Sculptor Group of galaxies, neighbor to our own local galaxy group.
在靠近天穹边缘出现的NGC 253 距离我们只有 1300 万光年之遥，它是玉夫星系团的最大的成员，和我们所在的星系团相邻。
If all goes to plan, then on July 16th Dawn, the largest robotic probe ever launched by America's space agency, will drop into orbit around Vesta, the second-largest member of the asteroid belt.
如果一切按计划行事，那么，7月16日，美国航天机构有史以来发射最大的机器人探测器——“黎明”号——将顺便进入小行星带第二大成员——灶神星——的轨道。
If all goes to plan, then on July 16th Dawn, the largest robotic probe ever launched by America's space agency, will drop into orbit around Vesta, the second-largest member of the asteroid belt.
如果一切按计划行事，那么，7月16日，美国航天机构有史以来发射最大的机器人探测器——“黎明”号——将顺便进入小行星带第二大成员——灶神星——的轨道。
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