Close window Published online: 10 April 2007; | doi:10.1038/news070409-5 Stardust samples genuine, researchers sayFears of contamination in comet collection may be overblown.Katharine Sanderson A comet's tale: minerals trapped by the Stardust mission brought some surprises. JPL / NASA Recent media reports that certain comet samples returned by the Stardust mission may simply be contamination have been overblown, say researchers. In a paper to be published in the journal Energy and Fuels, astrobiologists in Spain suggest that some minerals returned by the Stardust mission might have been caused by a reaction between the rocket's fuel and the fuel tank1. The...