A tiny atomic nucleus, measurable in a lab, tells us about the size of a neutron star thousands of light-years away. Scientists found a universal link: the easier it is to deform a lead nucleus, the softer the matter in a neutron star and the smaller its radius. It's like learning the hardness of an invisible object by squeezing a spring on Earth.
🎯 Due to the monstrous gravity of a neutron star, its surface is almost perfectly smooth: mountains there can't be taller than a few millimeters — any bump gets instantly crushed.
🎬 In the sci-fi novel 'Dragon's Egg', a civilization is described living on a neutron star, where time flows thousands of times faster than on Earth.