NASA is seeing neutrons. Next up will be dead grad students.
https://www.sciencedirect.com/science/article/abs/pii/S1572665721000503
Some pretty dramatic results, some positive but most a bust on a very random basis.
In retrospect this was probably due to using catalysts that loaded with deuterium macroscopically on a consistent basis, but failed to interpenetrate into the proper lattice configuration except in a very infrequent and random fashion.
Seems properly engineering the incorporation of the deuterium into the optimum metallurgy to provide a consistent, properly structured lattice configuration that generates fusion could be the key.
It remains to be seen if there is a sweet spot were deuterium loading gives a high enough probability of proximate deuterium molecules to support sustained, controlled fusion without melt down or worse.
Good to see this is finally coming to fruition but glad I backed away as 32 years is a bit to long to see practical results and commercialization is still well into future.
FWIW, US DOE owns all patents for nuclear process technolgy