Amazon “Luna Prime”: crater delivery and AWS on the Moon
Same-day logistics, edge compute, and dish backhaul—off-world.CAPE CANAVERAL — Amazon unveiled Luna Prime at a launch-site briefing Wednesday.
The Luna Prime program extends logistics to the lunar surface using rideshare launches, in-orbit transfer vehicles, and surface rovers branded LunaCart. A companion offering, AWS Luna Region, delivers a solar- and battery-powered edge cloud linked by parabolic dishes for Earth relay.
Engineers noted that roughly 2.5 seconds of Earth–Moon light time keeps many workloads “eventually consistent.” Observers raised questions about flight paths near historic landing sites and coordination with radio-quiet zones reserved for astronomy.
Two datacenters: sun ridge and shadow vault
AWS Luna Region is split across two ground stations a few kilometers apart near the lunar south pole. The architecture pairs a **power-forward, sun-fed campus** with a **dark, cold neighbor** so arrays and radiators stay in favorable lighting while sensitive compute can sit where the surface never sees direct sun.LCS-1 Helios Ridge sits on a high crater rim where polar geometry keeps the Sun above the local horizon for almost the entire lunar month. Because the Moon’s spin axis is only slightly tilted, the solar disk circles low in the sky without setting for long stretches—only brief seasonal eclipses behind nearby peaks interrupt the beam. For capacity planning, operators treat the ridge as **near–24-hour sunlight**: solar wings and electrolysis stacks are sized as if the site enjoyed continuous local day, with a thin margin for those edge-of-horizon gaps.
LCS-2 Umbra Vault lies on the floor of a neighboring **permanently shadowed region**. No direct sunlight reaches the hatch, so native temperatures stay cryogenic-friendly and extra thermal shielding is free. That site runs on **HVDC and fiber** from Helios Ridge, with local flywheels for ride-through. Dishes and large battery farms stay concentrated on the sunlit ridge; Umbra hosts the deepest buried halls and cold-row storage tiers.
Map: Helios Ridge and Umbra Vault (schematic)
LCS-1 rides a pole-facing terrace that stays in sunlight for the vast majority of each lunar cycle—treated as continuous daylight for solar and battery sizing. LCS-2 sits meters away in permanent shadow, fed from the ridge. The large disk suggests the near side; the inset exaggerates the south polar geometry where the Sun never climbs high.Buried compute for radiation shielding
Most of AWS Luna Region lives below grade. Galactic cosmic rays and solar particle events are far harsher than on Earth, and long-term exposure is hard on silicon and humans alike. The design places racks inside a mined or tunneled volume capped by meters of lunar regolith—nature’s bulk shield—plus a structural pressure shell where the hall is kept at controlled atmosphere for servicing. Target cover is on the order of three to six meters of compacted overburden (varies by site and risk model), sometimes augmented with hydrogen-rich layers or water inventory where mass budgets allow.Power conversion, battery banks, and parabolic Earth links stay closer to the surface where solar flux is available and radiators can see space. Fiber and high-voltage trunk lines run through a hardened access stack to the subsurface hall so compute stays quiet and shielded while RF and thermal hardware remain in the surface plant.
