Getting out of the solar system is incredibly difficult. Well, not necessarily difficult, but expensive. So far we've launched a grand total of five spacecraf

Getting out of the solar system is incredibly difficult. Well, not necessarily difficult, but expensive. So far we've launched a grand total of five spacecraft that will leave our solar system, with a combined mass of just over 2500 kg. That doesn't even put a dent in the amount of nuclear waste we're talking about. Somewhat counter intuitively, it's actually a bit more difficult to crash into the sun than to leave the solar system. There's also the small problem that an explosion on launch could result in a massive area being exposed to highly concentrated radioactive fallout.