Javier Sierra Albert (born 11 August 1971 in Teruel, Aragon, Spain)[1] is a journalist, writer and researcher who studied journalism at the Complutense University of Madrid.

[3] He is editor consultant of the monthly magazine Más Allá de la Ciencia (Beyond Science)[4] distributed in Spain and Latin America and he participates in several radio and television programs.

For years[quantify], Sierra has been working with people like Graham Hancock and Robert Bauval attempting to demonstrate the existence of a Golden Age of humanity.

[5] His hypothesis holds that this Golden Age was extinguished about 10,500 years ago, and it was the origin of all the known civilisations.

[8] His 2006 novel The Secret Supper was in the top ten of The New York Times Best Seller list and has been published in 42 countries.