The Pirate Bay is almost always struggling against government agencies and industry groups, based on allegations of "copyright infringement" even though they host no files that anyone has a copyright on. In attempt to not get raided by said agencies and groups, TPB is now experimenting with what they call LOSS, or Low Orbit Server Stations. Basically, it's a GPS-controlled drone flying several kilometers above the earth that will act as the front-end servers. They are the servers that will receive traffic and redirect it to servers whose location is secret. The idea behind this is that, in order to take the servers down, governments will have to physically fly up and destroy the servers. This could be seen as an act of war against any nation the drones are flying over, which will make any government trying to stop The Pirate Bay think harder about what they're doing.
Part of the blog post read, "We're just starting so we haven't figured everything out yet. But we can't limit ourselves to hosting things just on land anymore. These Low Orbit Server Stations (LOSS) are just the first attempt. With modern radio transmitters we can get over 100Mbps per node up to 50km away. For the proxy system we're building, that's more than enough."
Obviously one of the biggest questions that comes up with this idea is power. While I'm not all too familiar with solar-power, the size of the drone would seemingly have to be huge in order to keep these servers powered. This is only one problem with the idea. Another is that instead of shutting down the server itself, governments would only have to shut down to wherever the drone is connected to. The vast majority of the internet's infrastructure is through cable (most of the data traffic across continents is moved through under-sea cables), so it would simply be a matter of controlling the nearest hub. The whole idea of LOSS seems a little fishy to me, some have gone even so far to guess it's an early-April Fools joke. All I know is that "you can't stop the signal, Mal."