Yes, you did read that right. Google is making fake human skin. We'll agree it sounds creepy, but there's a very good reason for it, and it may save your life one day.
Google X, a Google facility dedicated to making major technological advancements and the birthplace of Google Glass, has previously made cancer-detecting nanoparticles. The aim of these nanoparticles is to enter your body via a pill, and attach themselves to any cancer particles you may have in your body.
The idea is that the particles will run through your veins and then back to your wrist, where they'll communicate information with a wristband through the form of light.
But Google's all too aware that everyone has different skin, and so to help understand how light passes through the skin, it has produced a range of fake arms with various skin types.
James Hamblin of The Atlantic spoke to Andrew Conrad, the head of Google Life Sciences about the technology. Andrew said the fake arms have "the same autofluoresecence and biochemical components of real arms".
He hopes the technology can be developed fully within years, rather than decades.
If you, like us, feel the idea of nanoparticles swimming around your body and being able to communicate with a wristband is weird, Andrew has the perfect answer. He says "it's way weirder to have cancer cells floating through your body that are constantly trying to kill you."