Google is working on a new operating system called Fuchsia. From the Verge:
Google appears to have started work on a completely new operating system, but no one knows quite what it’s for. The project’s name is Fuchsia, and it currently exists as a growing pile of code on the search giant’s code depository and on GitHub, too. The fledgling OS has a number of interesting features, but so far Google has yet to comment on its intended function. All we really know is that this looks like a fresh start for Google, as the operating system does not use the Linux kernel — a core of basic code that underpins both Android and Chrome OS.