Cosmology and the Dark Matter Frontier
  A brief overview is given about some issues in current astroparticle physics,
focusing on the dark matter (DM) problem, where the connection to LHC physics
is particularly strong. New data from the Planck satellite has made the
evidence in favour of the existence of DM even stronger. The favourite, though
not the only, candidates for cosmological DM, weakly interacting massive
particles (WIMPs), are being probed by a variety of experiments - direct
detection through scattering in terrestrial detectors, indirect detection by
observing products of annihilation of DM in the Galaxy, and finally searches at
accelerators such as the LHC. The field is in the interesting situation that
all of these search methods are reaching sensitivities where signals of DM may
plausibly soon be found, and a vast array of models will be probed in the next
few years. Of course, expectations for a positive signature are high, which
calls for caution regarding 'false alarms'. Some of the presently puzzling and
partly conflicting pieces of evidence for DM detection are discussed as well as
expectations for the future.
