I am a theoretical cosmologist, and work as a professor of Physics at the University of Michigan. Before Michigan I was an NSF postdoctoral fellow at Kavli Institute for Cosmological Physics and the Department of Astronomy and Astrophysics at the University of Chicago, before that a postdoc in the Particle-Astrophysics Group at Case Western Reserve University, before that a graduate student at the University of Chicago, before that an undergraduate at MIT, and still before that a student at Gimnazija "Ognjen Prica" in Sarajevo, Bosnia and Herzegovina (then Yugoslavia).

I work on trying to understand the nature and properties of "dark energy", a mysterious component that makes up about 70% of the energy in the universe and causes its accelerated expansion and whose physical nature is considered to be one of the top unsolved problems in physics and astronomy. In this quest I use type Ia supernova measurements, large-scale structure surveys, and cosmic microwave background anisotropies as tools of precision cosmology. Another focus of my research is testing the statistical isotropy of the universe - whether, on average, the universe looks the same in every direction that we observe. I also study signatures of the early universe in the present-day astronomical observations, applying various methods to learn about the universe moments after the Big Bang. I am an active member of two large collaborations: Dark Energy Survey (DES), and Dark Energy Spectroscopic Instrument (DESI) on which I currently servie as a co-leader of the likelihood analysis key project.

Curriculum Vitae available HERE (pdf).