*For a twelve-point listicle, it's pretty good.
http://io9.gizmodo.com/12-ways-humanity-could-destroy-the-entire-solar-system-1696825692
(…)
"10) An Interplanetary Grey Goo Disaster
"Somewhat similar to self-replicating space probes, there’s also the potential for something much smaller, yet equally as dangerous: exponentially replicating nanobots. A grey goo disaster, where an uncontrollable swarm of nanobots or macrobots consume all planetary resources to create more copies of itself, need not be confined to planet Earth. Such a swarm could hitch a ride aboard an escaping spaceship or planetary fragment, or even originate in space as part of some megastructure project. Once unleashed in the Solar System, it would quickly turn everything into mush…"
