The last decade has seen the emergence of "precision" cosmology, with exquisite precision data collected
and more and more reliable theoretical predictions to compare them to. Julien Lesgourgues will give an
overview of this field, presenting some of the ongoing challenges and efforts with scientific cases in
Cosmic Microwave Background anisotropy analyses, in particular related to Planck.
Aurelien Barrau will show how these kinds of observables may be used to shed light on physical phenomena
at extremely high energy scale (like inflation) possibly related to quantum gravity aspects.
Another pillar of current astroparticle activities is the identification of dark matter. Andreas Goudelis will
present some model-building paths to address this issue from the particle physics perspective and their
link with collider searches. David Maurin will outline the challenges of indirect detection of dark
matter candidates via cosmic ray messengers, presenting some techniques and tools required to tackle
e.g. the forthcoming high precision data from AMS-02.