  On November 8, 2010 the Large Hadron Collider (LHC) at CERN collided first
stable beams of heavy ions (Pb on Pb) at center-of-mass energy of 2.76
TeV/nucleon. The LHC worked exceedingly well during its one month of operation
with heavy ions, delivering about 10 microbarn-inverse of data, with peak
luminosity reaching to $L_{0} = 2 \times 10^{25}{\rm cm}^{-2}{\rm s}^{-1}$
towards the end of the run. Three experiments, ALICE, ATLAS and CMS, recorded
their first heavy ion data, which were analyzed in a record time. The results
of the multiplicity, flow, fluctuations, and Bose-Einstein correlations
indicate that the fireball formed in nuclear collisions at the LHC is hotter,
lives longer, and expands to a larger size at freeze-out as compared to lower
energies. We give an overview of these as well as new results on quarkonia and
heavy flavour suppression, and jet energy loss.
