On March 18th, the IFT hosted a new DIFT Colloquium given by David Weinberg (Ohio State University), titled “The Mystery of Cosmic Acceleration”, and jointly organized by the IFT and the UAM Department of Theoretical Physics (DFT).
The talk addressed one of the major open problems in modern cosmology: the accelerated expansion of the Universe, first observed in the late 20th century and still lacking a definitive explanation. Weinberg reviewed the current observational evidence, including data from supernovae, large-scale structure surveys, and the cosmic microwave background. He also discussed the main theoretical frameworks proposed to account for this phenomenon, such as dark energy models and possible modifications of gravity on cosmological scales.
