this post was submitted on 07 May 2025
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Evidence of controversial Planet 9 uncovered in sky surveys taken 23 years apart (www.space.com)
submitted 1 day ago by StraponStratos@lemmy.sdf.org to c/world@quokk.au
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[–] Zachariah@lemmy.world 5 points 1 day ago

The best candidate yet for the elusive Planet Nine has been spotted in two deep infrared surveys taken 23 years apart. If this mystery object really is Planet Nine, it would have a mass greater than Neptune, and currently be about 700 times farther from the sun than Earth is.