x No Plagiarism!DrOXwLJY6lUrdlrOhEwAposted on PENANA A single teaspoon of a neutron star weighs 6 billion tons ! this is because they are very dense 8964 copyright protection86PENANA2ZgmXBpKrN 維尼 172.70.178.48ns 172.70.178.48da2