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Daily space facts - Fact 4 | Penana
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Daily space facts
篇 #4
Fact 4
No Plagiarism!2aHqExiyZtyfGGAsj7zlposted on PＥNAＮＡ A single teaspoon of a neutron star weighs 6 billion tons ! this is because they are very dense 8964 copyright protection209ＰＥＮＡＮＡw8KD0susU0 維尼
3.128.171.15
ns3.128.171.15da2
然後按「加至主畫面」