The University of Johannesburg has been ranked among the world’s best institutions of higher education in the latest global top 400 Best Global Universities Rankings. A spokesperson says the university is ranked first in the country and on the continent for Chemistry, up from the second position last year. According to Newsflash, the institution was also ranked second in South Africa for Geo-sciences. The overall Best Global Universities’ Rankings encompass the world’s top one-thousand-500 universities spread across 86 countries.