The 8.5 tonne space station, which been in a decaying orbit since March 2016, is expected to re-enter the atmosphere early next year.
Forecasts predict the debris could rain down on several European countries – including Spain, Portugal, Italy, Bulgaria and Greece.
The European Space Agency (ESA) is leading a campaign to track possible crash sites once Tiangong-1 returns to Earth.The craft will "inevitably decay sometime between January and March 2018", according to Holger Krag, head of ESM's Space Debris Office.
He said: "No fragments will fall over any spot further north than 43 degrees North or further south than 43 degrees South.
"Reentry may take place over any spot on Earth between these latitudes, which includes several European countries, for example.
"The date, time and geographic footprint of the re-entry can only be predicted with large uncertainties.
"Even shortly before re-entry, only a very large time and geographical window can be estimated." Source
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