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We present the first evidence of multiple populations in the Galacticglobular cluster NGC 6362. We used optical and near-UV Hubble Space Telescopeand ground based photometry, finding that both the sub giant and red giantbranches are split in two parallel sequences in all color magnitude diagramswhere the F336W filter (or U band) is used. This cluster is one of the leastmassive globulars (M_tot~5x10^4 M_sun) where multiple populations have beendetected so far. Even more interestingly and at odds with any previous finding,we observe that the two identified populations share the same radialdistribution all over the cluster extension. NGC 6362 is the first system wherestars from different populations are found to be completely spatially mixed.Based on N-body and hydrodynamical simulations of multiple stellar generations,we argue that, to reproduce these findings, NGC 6362 should have lost up to the80% of its original mass

First evidence of fully spatially mixed first and second generations in globular clusters: the case of NGC 6362