ICREA Research Professor at ICE (CSIC-IEEC) since 2003. Author of about 770 articles cited over 73000 times. Four ms were cited more than 3000 times, while 2 ms-more than 2000 times, 7 ms and two books - more than 1000 times each. Foreign Member of the Royal Norwegian Academy and of Serbian Academy of Nonlinear Sciences, member of Eur. Phys. Soc. and Italian Grav. Soc. Awarded by Amaldi Gold Medal: European Prize for Grav. Physics 2014. Editorial Board Member of six journals. Editor-in-Chief of journal Symmetry and Deputy Editor-in-Chief of Astrophysics.Referee of about 20 journals (with dozen excellence certificates). Hirsh index h=132(Google S.), h=123(inspirehep), h=115(Scopus). Supervisor of 14 PhDs. Speaker/lecturer of about 130  and organizer of 46 int. workshops. Top Cited Clarivate Analytics Researcher in 2014-2018, 2023. Honorary professor of several universities. According to research.com ranked 410 in the world ranking of best scientists in the field of Physics.

I develop the theory which should describe our universe evolution as a whole. My main purpose is  to resolve the fundamental puzzle of modern cosmology: why and how the universe accelerates? What is Dark Energy and Inflation? In fact, I proposed the first modified gravity which may describe the consistent universe history. In relation with modified gravity we suggested new generalised entropy which gives all known entropies as particular examples.  The alternative gravity which we develop should describe the whole sequence of the universe eras: inflation, radiation-matter dominance and dark energy era in a unified way. Currently, I proposed/developed several realistic modified gravities which unify the inflation consistent with Planck and ACT data with dynamical dark energy which passes latest bounds including DESI. Our study of current universe will clarify its future: if it will expand eternally or if its evolution will be finished in the future singularity.