Possible Clues:

• Puff of smoke that makes you grow to twice your size, a la Super Mario Bros.?
• Space probes face constant thundering in explosive aftermath
• ... that creates obscure end to growth - it's devastating
• Rubbish study, perhaps, about flashy aftermath of explosion?
• Space probes face constant bellowing in bomb's aftermath
• Atomic bomb formation
• Nuclear explosion aftermath
• Post-nuclear effect involving airborne fungal spores?
• 'Dr. Strangelove' image
• Visible sign of nuclear explosion