http://www.newsweek.com/kilonova-discovered-heavy-elements-tellurium-1837790

In the second-brightest supernova ever seen, two neutron stars have collided and created a variety of rare heavy elements, many of which are needed for life on Earth.

The extraordinarily bright gamma-ray burst created by the collision, named GRB 230307A, is thought to be over a million times brighter than the entire Milky Way Galaxy.