A small, new-generation satellite designed and built at the University of Iowa has re-entered Earth's atmosphere, after a successful mission to search for matter believed to be missing since the birth of the universe.

The mini satellite, called HaloSat, was designed and built by a team led by Philip Kaaret, professor and chair in Department of Physics and Astronomy. HaloSat was the first astrophysics-focused and competitively selected CubeSat mission funded by NASA’s Astrophysics Division.