We now have a "treasure map" to find dust from ancient supernova explosions buried on the Moon.
April 14, 2026
Original Paper
Gardening on the Moon: An Advection-Diffusion Model to Guide the Search for Supernova Debris in the Lunar Regolith
arXiv · 2604.09524
The Takeaway
By modeling how moon dust is mixed by impacts, scientists predicted the exact depths where radioactive isotopes from dead stars are hidden. This gives the Artemis missions a specific target to dig for a literal physical history of the Milky Way's explosions.
From the abstract
The vertical redistribution of materials in the lunar regolith - ranging from continuously produced space-weathering products to sporadic pulses of supernova- or kilonova-derived isotopes - remains a fundamental problem in planetary science. We present a unified stochastic model of regolith gardening induced by the impact flux. Treating gardening as a competition between impact-driven advection and diffusion predicts the maturity profiles of Apollo cores over more than two orders of magnitude in