The first is a pair of planets, each about the mass of Jupiter, that whirl around their home star 15 light years from Earth in perfect lockstep.
第一个是一对质量与木星差不多的行星，这对行星步调一致地围绕距离地球15光年的母恒星旋转。
The nebula lies about 5,800 light-years from Earth and is home to a cluster of relatively young stars born about eight million years ago.
这片星云距离地球5，800光年，是一组八百万年前诞生的相对年轻的恒星的家园。
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