Micron announced on July 22, 2025 that it launched a 256-gigabit radiation-tolerant single-level cell (SLC) NAND product, described as the industry’s highest-density space-qualified NAND and the first product in a planned aerospace portfolio that will also include NOR and DRAM.[1][5] The company says the part is available now, and that it is the first in its class offered by any major memory manufacturer.[1][3]
Micron aligned qualification work to space-reliability and radiation-test regimes, including NASA PEM-INST-001 Level 2 screening with yearlong qualification flow elements, MIL-STD-883 TM1019 condition D total ionizing dose testing, and SEE testing under ASTM F1192 and JEDEC JESD57.[1][8] For lunar infrastructure, this indicates a memory part intended to survive radiation, temperature cycling, and long mission lifetimes, which is directly relevant to resilient command-and-control, data logging, science archives, and local copies of critical civilization records on the Moon.[1][4][5]
The Ark team should track whether this portfolio expands into DRAM and NOR with comparable qualification depth, because a complete radiation-tolerant memory stack reduces single-vendor risk for lunar systems and archived data pathways.[1][5] The team should also compare Micron’s real operating limits, especially density, temperature range, burn-in, and radiation tolerance, against Ark storage requirements for sealed vault controllers, rover avionics, and redundant preservation nodes before any procurement or integration decision.[1][8]