Cosmic Gulp: Astronomers See Black Hole Swallow Neutron Star

This illustration depicts a black hole swallowing a neutron star. (Carl Knox/OzGrav/Swinburne University Australia via AP) Talk about a heavy snack. For the first time, astronomers have witnessed a black hole swallowing a neutron star, the most dense object in the universe—all in a split-second gulp. Ten days later they saw the same thing, on the other side of the universe. In both cases, a neutron star—a teaspoon of which wo...