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New NASA Technology Mimics Extreme Cold of the Lunar Night

Page: NASA article by Jacqueline Minerd, 6 May 2026 (its photos are dated May and June 2025). https://www.nasa.gov/general/nasa-technology-mimics-extreme-lunar-night/. Fetched 2026-10-02T04:02:58Z. File: sources/moon-base/nasa-gov-general-nasa-technology-mimics-extreme-lunar-night.md.

Summary. Glenn Research Center's Lunar Environment Structural Test Rig (LESTR) tests "materials, electronics, and other flight hardware at temperatures as low as 40 Kelvin, or about –388 degrees Fahrenheit", cooled by a cryocooler instead of liquid cryogens. It is used first on a shape memory alloy for rover tires. The article names the Moon Base as the reason; its subject is that of tech gap #0804 (the pairing is the wiki's).

Key points

  • Why: "In frigid conditions, rubber can shatter like glass, circuit boards may fail, and electrical connections can freeze and fracture" — "especially as NASA looks to build its Moon Base at the lunar South Pole, where surface temperatures swing dramatically from blistering heat during the day to bitter cold at night".
  • How: "the entire rig operates in a completely dry vacuum: no liquid nitrogen, no liquid helium, no liquid anything" (Ariel Dimston, technical lead); "the first 'dry' cryogenic test environment within the mechanical testing industry", "safer and more affordable".
  • Uses: yarns "that may someday be woven into fabrics used for next-generation spacesuits", and "a new metal that can return to its original shape after being bent, stretched, heated, and cooled" for rover tires. Principal investigator Santo Padula II: "a next-generation shape memory alloy that is capable of functioning at temperatures down to 40 Kelvin, one of the coldest regions we could go to with rover capability".
  • Status: LESTR 1 delivered to Fort Wayne Metals in Indiana to test shape memory alloy; LESTR 2 being built.

What it doesn't say

Any gap or Moon Base phase; test results.

#0804 Robotic and Mobility Systems in Extreme Cold · #0301 Systems to Survive Extended Lunar Shadow · Environment · Moon manufacturing material (tested in LESTR)