A single teaspoon of a neutron star weighs 6 billion tons ! this is because they are very dense
ns18.218.145.54da2
×
寫下你喜歡這個故事的地方
A single teaspoon of a neutron star weighs 6 billion tons ! this is because they are very dense 8964 copyright protection198PENANA2Fq5JZIM64 維尼
18.218.145.54
ns18.218.145.54da2在主頁加入 Penana 以更方便離線閱讀:按 然後按「加至主畫面」