Hello, my name is Enrique Gaztanaga. I'm research Professor at the Institute of Space Sciences (CSIC, IEEEC). I teach graduate  courses in Cosmology and have co-led  hundreds of peer reviewed publications  in Cosmology and Astrophysics.  I work both on theoretical and observational topics and  have helped build and analyze several international Cosmic Experiments.  I am writing this blog to bring front line research to interested readers  and to question our knowledge of the Universe around us.