A planet roughly the size of Earth could be tracing a vast, elliptical orbit at the outer edge of our solar system—and astronomers in Japan think they know where to find it.
Mar
19
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Planet X to be found scientists say we have been looking in wrong place
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A planet roughly the size of Earth could be tracing a vast, elliptical orbit at the outer edge of our solar system—and astronomers in Japan think they know where to find it.
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