What we've discovered is an spiral in system. We're not quite too sure if it's a neutron star or a black hole. Now if it's a neutron star, it's the largest neutron star that's ever been detected. If it's a black hole, it's the lightest. So a neutron star, it's a body or a star that's left behind after a massive star, 20 or 30 times the mass of a Sun explodes. And a thin ball full of a neutron star would weigh as much as a mountain on earth. If it really is a neutron star, that breaks all theoretical understanding of matter at really high densities. So this discovery is another joint step in finding and discovering more about the Universe. Music