Neutron stars – pictured in this artist’s illustration of two merging neutron stars – are among the phenomena to be studied at the new UM Center for Multi-messenger Astrophysics. The narrow beam represents the gamma-ray burst, and the rippling spacetime grid indicates the isotropic gravitational waves that characterize the merger. Swirling clouds of materials ejected from the collision are a possible source of the light that was seen at lower energies. Graphic courtesy National Science Foundation/LIGO/Sonoma State University/A. Simonnet