This week Mark Zuckerberg showed off several photographs of lasers he suggested would be sending internet signals all around the world. These lasers will be used with Facebook's Internet.org project, beaming information "from a plane flying overhead or a satellite flying way overhead," according to Facebook CEO Mark Zuckerberg. "They'll communicate down to earth using very accurate lasers to transfer data." This isn't the first experiment in the world to use lasers to send data. In fact several organizations - like the ESA and NASA - have already begun real-world testing for data transfer between craft in space and labs on our planet's surface. Data transfer with lasers is super reliable and fast, too!