  We demonstrate the trapping of millimeter-scale superfluid Helium drops in
high vacuum. The drops are sufficiently isolated that they remain trapped
indefinitely, cool by evaporation to 330 mK, and exhibit mechanical damping
that is limited by internal processes. The drops are also shown to host optical
whispering gallery modes. The approach described here combines the advantages
of multiple techniques, and should offer access to new experimental regimes of
cold chemistry, superfluid physics, and optomechanics.
