NASA astronauts Reid Wiseman and Steve Swanson along with ESA astronaut Alexander Gerst floated a GoPro camera inside a free-floating bubble of water on board the International Space Station to create an incredible video. Besides the footage taken from the GoPro camera itself, the astronauts also filmed the event with the 3D camera on board the ISS, and uploaded the 3D version as a separate video.
The video was filmed some time in the summer of 2014 during ISS Expedition 40. Since that time Swanson has returned to Earth while Wiseman and Gerst remain on the space station as part of Expedition 41.
image via NASA