# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2018-08-16 07:54:15 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/1029999768708284416) In reply to: [@keefmoon](http://twitter.com/keefmoon/status/1029999528680849408) There is no wall at the edge of our solar system, just an area where two types of sparse background particles meet.