The Planck scale – around 10–35 m – is far below scales that can be reached with current accelerators; even the LHC gets down to only about 10–19 m. However, there may yet be hope. Vahagn Gharibyan of DESY, Hamburg, has looked at laser Compton- scattering from leptons at current and future accelerators for effects of a modified dispersion relation that is expected in many quantum-gravity models. Despite the deviations from the usual relation being suppressed by the Planck scale, it turns out that the effective change in refractive index of space http://cerncourier.com/cws/article/cern/51544 could be detectable. For 6 GeV electrons at PETRA-III, a scale of 10–31 m could be reached, while at a future 250 GeV lepton collider, the real Planck scale could come into view.