# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2010-10-01 11:50:43 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/26072059131) RT @jimmy_wales: How much would it cost to send a nice probe to http://en.wikipedia.org/wiki/Gliese_581_g ? How long would it take?