The new planetary system, the first in which both planets can be seen crossing in front of their star, may also contain an Earth-sized companion.

这个新发现的行星系统，第一两颗行星会在恒星前交叉经过，第二该系统都可能包含有地球大小的行星。

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'Most planetary scientists would not be surprised if the largest undiscovered companion was Neptune-sized or smaller, but a Jupiter-mass object would be a surprise, ' Matese told SPACE.com

“如果这个最大的未被发现的‘同伴’只有海王星那么大，或者更小，大部分行星科学家都不会感到惊喜，但是如果是木星那么大的暗星体，那将是一个惊喜，”马泰赛告诉SPACE.com太空网。

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"The eccentric planetary orbits seen in these systems are essentially scars from past disruptions caused by the companion star, " co-author Sean Raymond, of the University of Bordeaux and the National Center for Scientific Research in France, said in a statement.

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