  Every second greater than $10^{25}$ antineutrinos radiate to space from
Earth, shining like a faint antineutrino star. Underground antineutrino
detectors have revealed the rapidly decaying fission products inside nuclear
reactors, verified the long-lived radioactivity inside our planet, and informed
sensitive experiments for probing fundamental physics. Mapping the anisotropic
antineutrino flux and energy spectrum advance geoscience by defining the amount
and distribution of radioactive power within Earth while critically evaluating
competing compositional models of the planet.
  We present the Antineutrino Global Map 2015 (AGM2015), an experimentally
informed model of Earth's surface antineutrino flux over the 0 to 11 MeV energy
spectrum, along with an assessment of systematic errors. The open source
AGM2015 provides fundamental predictions for experiments, assists in strategic
detector placement to determine neutrino mass hierarchy, and aids in
identifying undeclared nuclear reactors. We use cosmochemically and
seismologically informed models of the radiogenic lithosphere/mantle combined
with the estimated antineutrino flux, as measured by KamLAND and Borexino, to
determine the Earth's total antineutrino luminosity at $3.4^{+2.3}_{-2.2}
\times 10^{25} \bar{\nu}_e$. We find a dominant flux of geo-neutrinos, predict
sub-equal crust and mantle contributions, with $\sim1\%$ of the total flux from
man-made nuclear reactors.
