The oldest exoplanet known yet, PSR B1620-26 b, nicknamed Methuselah, is also a pulsar planet, located 5,600 light years from Earth in the Scorpius constellation.
已知最古老的太阳系外行星是PSR B1620-26b，又名Methuselah，它也是一颗脉冲星行星，位于5600光年之外的天蝎座中。
It is also a circumbinary planet, orbiting around a binary system composed of the pulsar PSR B1620-26 a and the White Dwarf WD B1620-26.
Methuselah同时也是一颗circumbinary行星，它围绕着一个双星系统旋转，这个双星系统由脉冲星PS rB1620 - 26a和白矮星wd B1620 - 26组成。
The astronomers believe that the diamond planet is all that remains of a once massive star, most of whose matter was siphoned off towards the pulsar.
天文学家相信，这颗钻石星球是一颗大星球的残骸，它的大部分成分被这颗脉冲星吸住。
How such a dense planet formed is unclear, the researchers say, but it's probably the crystalline vestige of a White Dwarf star whose atmosphere was stripped away by the parent pulsar.
研究人员称，至于密度这么高的行星是如何形成的，这一点尚不清楚，但它很可能是一颗被主脉冲星剥夺了大气的白矮星留下的晶体残骸。
How such a dense planet formed is unclear, the researchers say, but it's probably the crystalline vestige of a White Dwarf star whose atmosphere was stripped away by the parent pulsar.
研究人员称，至于密度这么高的行星是如何形成的，这一点尚不清楚，但它很可能是一颗被主脉冲星剥夺了大气的白矮星留下的晶体残骸。
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