When a particularly large star dies, it collapses in on itself till it creates an infinitely dense level referred to as a singularity. The gravitational properly round such an object is so highly effective that not even gentle can escape, so we gave these terrifying spaceborne gravity monsters the cutesy title “black holes.” These stellar corpses basically rip a chasm proper via the material of spacetime, so to name them the densest objects in area is not fairly truthful — they’re disqualified. In case you’re in search of the densest objects not shrouded in an acausal shell of darkness, you will must accept the common-or-garden neutron star.
To make a neutron star, it’s worthwhile to take the mass of the Earth and crush all of it right into a sphere about 12 miles in diameter — after which inside that very same sphere, discover room to jam in one other 499,999 Earths on prime of the primary one. It will get to be fairly tight quarters in there. As you may think, a neutron star is a really totally different sort of celestial object than a extra typical star like our personal Solar. One such distinction? A neutron star has a strong floor referred to as a crust.
In that manner, a neutron star has one thing in frequent with our humble planet. And whereas the mechanisms are totally different, the crust of a neutron star may be topic to sudden and violent shifting, not fully not like an earthquake. A starquake. Might they by some means be the supply of FRBs?