A medical scanner can take 3D images of the entire body at once for the first time ever. 

A combination of two commonly-used scanners - positron emission tomography (PET) and X-ray computed tomography (CT) - the EXPLORER scanner offers a fascinating insight to the inner workings of the human body.  

The machine produces a 3D video that could help diagnose disease, track the spread of cancer or infections, and develop new medicines by creating a whole-body diagnostic scan in 20-30 seconds.

Professors Simon Cherry and Ramsey Badawi, from the University of California, Davis, have spent millions of dollars and more than a decade building the machine.