Sakharov kept on asking for "glasnost" (openness). In 1986, Mikhail Gorbachev, who agreed with Sakharov and thought there should be "glasnost", let the dissident scientist return home. Sakharov continued to call for reform, and in December 1989, he died of heart failure, at the age of 68. . But two years later his wish became true with the dissolution of the Soviet Union. .