  The recurrent nova U Scorpii most recently erupted in 2010. Our collaboration
observed the eruption in bands ranging from the Swift XRT and UVOT w2 (193 nm)
to K-band (2200 nm), with a few serendipitous observations stretching down to
WISE W2 (4600 nm). Considering the time and wavelength coverage, this is the
most comprehensively observed nova eruption to date. We present here the
resulting multi-wavelength light curve covering the two months of the eruption
as well as a few months into quiescence. For the first time, a U Sco eruption
has been followed all the way back to quiescence, leading to the discovery of
new features in the light curve, including a second, as-yet-unexplained,
plateau in the optical and near-infrared. Using this light curve we show that U
Sco nearly fits the broken power law decline predicted by Hachisu & Kato, with
decline indices of -1.71 +/- 0.02 and -3.36 +/- 0.14. With our unprecedented
multi-wavelength coverage, we construct daily spectral energy distributions and
then calculate the total radiated energy of the eruption, E_rad=6.99
(+0.83)(-0.57) * 10^44 erg. From that, we estimate the total amount of mass
ejected by the eruption to be m_ej=2.10 (+0.24)(-0.17) * 10^-6 M_solar. We
compare this to the total amount of mass accreted by U Sco before the eruption,
to determine whether the white dwarf undergoes a net mass loss or gain, but
find that the values for the amount of mass accreted are not precise enough to
make a useful comparison.
