Updated Tue, Jul 10, 2012 by Martuk
According to Kotaku’s report, the video was sent by someone that felt the hard work of 38 Studios and Big Huge Games should be celebrated. Kotaku also notes that the video was intended to be used to reveal the project to the world. Head over and give it a look.
You can also check out a fly-through video of Copernicus here.
Update: Former 38 Studios Creative Director Steve Danuser recently posted a response about the leaked video to clarify that the content was a work in progress and explain a little more about what was presented.