Thalaron radiation
- Subspace particle radiation
- First theorized by Federation scientists c.2370s (Star Trek: Nemesis)
- Research banned by most near-Federation powers as a biogenic weapon (Star Trek: Nemesis)
- Romulan Star Empire continued research under the auspices of the Tal Shiar (DS9 Short Story: "Twilight's Wrath")
- Causes organic matter to break town at an atomic level (Star Trek: Nemesis)
- Fatal to any carbon-based life (Star Trek: Nemesis)