Related Clues:
- Mushroom cloudmaker
- Mushroom cloud maker, briefly
- Los Alamos project, briefly
- Oppenheimer opposed it
- Manhattan Project weapon, for short
- Manhattan Project goal
- Big blast maker, for short
- Weapon since '52
- *Weapon first tested in '52
- 16-Across concern, briefly
- Cloud maker
- Explosive weapon
- Drop __ (announce startling news)
- Cloud producer, informally
- Trinity test subject