Universe

Quasars may answer how starburst galaxies were extinguished

Observations suggest quasars may starve galaxies of energy needed to form stars
University of Iowa astronomers have located quasars inside four dusty starburst galaxies. The discovery may explain why this type of galaxy, where huge numbers of stars were once created, ceased making stars.
big bang illustration

Universe’s birth just a detection away

UI researchers design and build high-energy detector to learn about hot plasma after the Big Bang
A high-energy physics group, led by Yasar Onel and Jane Nachtman at the University of Iowa, has designed and built a sub-detector to better understand what happened immediately after the universe’s birth. The Zero Degree Calorimeter measures particles’ shower, which mimics hot plasma created right after the Big Bang.