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Gravedad Cero (Zero Gravity) is a scientific information blog, founded in 2009 by Carlo Ferri and Roger Oliva.

Carlo Ferri has a Bachelor’s degree by the Università degli Studi di Bologna (Italy) and he currently resides in Barcelona, where he is completing a Doctorate’s thesis in Physics in the Institute of Space Sciences of the CSIC, en Barcelona. Regarding journalism, he has collaborated with El País and with the scientific information magazines Espacio, L’Astronomia, Coelum. He currently writes for Público, La Stampa and Il Sole 24 Ore, besides being part of the writing team of the Italian blog Gravità Zero.

Roger Oliva Roger Oliva has a bachelor’s degree in Telecommunication Engineering by the Universidad Politécnica de Catalunya (Polytechnic University of Catalonia) and he currently works in the Agencia Espacial Europea (ESA), in the Earth Observation department. His expertise fields are in the use of interferometric and polarimetric instruments for the observation of the space.