Space agencies are tracking the path of a 30m long Chinese rocket that is falling uncontrolled back to Earth and predicted to land some time in the next few days. 

The 22.5 tonne rocket is among the top ten largest objects to fall uncontrolled to Earth and is predicted to land somewhere between Boston and Hobart. 

Space junk expert Ted Muelhaupt says the chance of the debris landing in an inhabited area are very slim due to the amount of the Earth covered by water.