Christoph Weniger (Max-Planck-Institut für Physik, Germany) will present the SSL colloquium on May 3rd: `Recently, we identified a tentative gamma-ray line in the Galactic center
observations of the Fermi LAT, which would be an unequivocal smoking-gun
signature for dark matter annihilation in the Universe. One year after
discovery, the signature is still as ambiguous as it could be. I discuss
recent experimental and theoretical developments and show how the situation
could be clarified until end of next year.’
