Heh, if I was the Science Museum I'm not sure I'd be all that keen on the idea of an explosion icon, even after you'd explained the additional metaphorical meaning.

(Likewise anything relating to mad scientists (even Einstein), Frankenstein, mutants, vivisection, nuclear radiation, etc.)

Assuming their brand values are about curiosity, discovery, the wonderful richness of the universe etc, the magnifying glass and DNA sounds more like the right kind of area.