Born in the Bessarabian locality of Vertiujeni, now part of Moldova, Mironov was from a family which took refuge in southern Romania following the region's second occupation by the Soviet Union before the end of World War II.

[2] His debut was in 1971 in the number 387 of the Colecția de Povestiri Științifico-Fantastice magazine, having published two sci-fi stories Performanță ciudată(Strange performance) and Prea târziu(Too late).

[2] Between 1969 and 1976, he traveled to various "paleoastronautics" sites studying the hypothesis that intelligent extraterrestrials have visited Earth in the past, this resulting in the book Enigmatic, pămîntul, published in 1977.

[3] According to Mironov's own statement, the communist regime sidelined him and sent him to work for the Radio company after his explicit refusal to broadcast praises of President Nicolae Ceaușescu.

In February 2008, Adem declared to the press that Mironov had been proposed as the PSR's new president, its main candidate in the scheduled legislative election, as well as contender for the office of Mayor of Bucharest.