/r/askscience
How did astronomers determine the mass of the rogue planet SIMP J01365663+0933473 if it’s not orbiting a star and has no known natural satellites?
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Is there a reason your own "young" bone marrow couldn't put in storage for an immune system "restoration" when you are older?
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AskScience AMA Series: We're Event Horizon Telescope scientists with groundbreaking results on our own galaxy. Ask Us Anything!
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