Hello — my name is Enrique Gaztanaga. I'm a Professor at the Institute of Cosmology and Gravitation (University of Portsmouth, UK) and also affiliated with the Institute of Space Sciences (CSIC, IEEC, Barcelona).

I teach undergraduate and postgraduate courses in Physics, Astrophysics, and Cosmology, and have co-authored hundreds of peer-reviewed publications. My research spans both theoretical and observational fronts, and I have contributed to the design and analysis of several major international cosmology projects — including SDSS, 2dFGRS, Planck, DES, PAUS, DESI, Euclid, LSST, and ARRAKIHS.

This blog shares ideas and results around the Black Hole Universe — a new framework that may shed light on the dark cosmos, cosmic acceleration, early-universe inflation, and other open questions in standard cosmology.

You’ll find posts and explanations below. For a deeper dive, you can explore the technical papers here.

Posts

• Jun 3, 2025

  What if the Big Bang Wasn’t the Beginning?

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