Hacker going by name “p0ison-r00t” deface a sub domain of NASA (https://spaceyourface.nasa.gov/). The hacked sub domain running a web application using flash, that allow visitors to create some funny videos of Space using Faces. The hacker also said that because of low privileges he was not able to modify any file, but was able to upload some text on the website, Check here. Mirror of hack also available on Zone-h.
Source: https://thehackernews.com/2013/01/nasa-space-your-face-domain-hacked_2563.html