We have tons of free high-energy radiation in space. LENR can be impractical on Earth, but be practical on Mars, or on a space station, or in Van Allen belts. M

We have tons of free high-energy radiation in space. LENR can be impractical on Earth, but be practical on Mars, or on a space station, or in Van Allen belts. Mars is very cold, but constantly bombarded by cosmic rays, because it lacks magnetic shield. Thin atmosphere allows much larger flux of particles with lower energies to reach ground. It may work, if lattice will be exposed to the cosmic rays. LENR can be used here as lightweight source of heat for domes.