how long will you think it will take until we have the technology to blast planets into smithereens?

Question: how long will you think it will take until we have the technology to blast planets into smithereens?
- Keywords:
  planet,
  space,
  technology,
  time
Asked by TheChosenOne to Angela, Claire, Ian, Robert, Sarah on 19 Nov 2014.
- Angela Stokes answered on 19 Nov 2014:
  
  Well, I don’t really know whether we would want to do that. The resulting explosion could damage our own earth. Also planets are huge structures with enormous masses so it would take probably more explosive than we could make on earth!!
- Sarah Harris answered on 19 Nov 2014:
  
  I agree with Angela – i’m not sure we’d ever develop that technology because it would be too damaging to earth and it would take such a ridiculously large amount of energy to even try!

Question: how long will you think it will take until we have the technology to blast planets into smithereens?