Born: in village Turnene, near to Pleven.
He graduated from the Physics Department of Sofia University (1982) and PhD in the Jnion Institute of Nuclear Research, Dubna, Russia (1990).
N. Kostov became Sc.D. (2006).
He worked in the field of computer algebra and theory of nonlinear solitonite and physical phenomena they explain.
He joined the Institute of Electronics, BAS (1982).
Specialised in UINR, Dubna, Rassia (1985 - 1990).
He transfered to INRNE - BAS since 2006, where in 2009 he was elected professor.