(keynote speaker)

Singularities in cosmology: a way to dodge them 

Spacetime singularities arise naturally in General Relativity under very natural assumptions and show up the limits of GR, which is known to be not a complete theory at the UV regime. In cosmology, some new singularities have been found over the last decades, awakening the interest again on the way they occur. In this talk, I will give an overview on cosmological singularities and then will show how under some assumptions, some spacetime observers might not feel any singularity versus others they do.