International Space Station to be 'sunk' after 2020 - Yahoo! News i am okay with retiring the space station after 20 years. but instead of trashing the ocean, why not use the infinite space outside earh's orbit? use this as a way of exploring long distance travel (unmanned) by pushing out of orbit, using limited thruster burns and guide it on a path either out of the Milky way (a la Voyager) or hell, just aim it at the sun in the world's biggest game of darts. it will eliminate junk, teach us something as it leaves, and we don't even risk the chance of it landing in Australia. just a thought.