Ghassib is professor of theoretical physics at the University of Jordan. After obtaining a PhD in physics and completing postdoctoral work at Manchester University, he returned to Jordan in late 1975. Since then he has worked in various capacities at the University of Jordan and other institutions, including the Arab Thought Forum, Majlis El Hassan and the newspaper AL ARAB AL YAWM. His honors and awards include: Abdul Hameed Shoman Prize for Young Arab Scientists in Fundamental Sciences, Amman, 1986; Al-Hussein Order of Merit for Distinguished Contribution, 2nd order, 1998; and 1st order, 2000; Distinguished Researcher Prize, The University of Jordan, 2011. He is a member of the Jordan Academy of Arabic (1984-) and the New York Academy of Sciences (1981).