He has been professor-in-residence or visiting scientist in France, Spain, Cuba, Switzerland, Russia, and the United States.

[2] He has written several books in Spanish, including The Origin of Life (1984) which became a best-seller with more than 600,000 sold copies.

[citation needed]In addition, he has been a member of several advisoryand review boards of scientific organizations, such as NASA, where he was a member of the NASA Astrobiology Institute[3] He served as president of the International Society for the Study of the Origin of Life, for two terms,[4] and is also the first Latin American scientist to occupy this position.

A great honor, for Alexander Oparin, Stanley L. Miller and J. William Schopf, were also presidents of ISSOL.

Lazcano has devoted considerable efforts to promote scientific journalism and teaching.