The science of where the station will hit is notoriously inexact because small changes in "space weather" - the effect on the Earth's atmosphere of flares of electromagnetic radiation and charged particles travelling as solar wind - can shift its trajectory drastically. But, in 2016 the Chinese aerospace agency informed that it has lost the control over the space station and they will not be able to carry out a controlled re-entry.
Because so much of the Earth is water and so much land is uninhabited, the chance of an individual person being hit by a chunk of Tiangong-1 is one million times smaller than the odds of winning the US Powerball jackpot, according to the Aerospace Convention - so one million times smaller than a one in 292 billion chance.
Tiangong-1 potential re-entry area.
Earlier in 2016, China had admitted that it had lost control of Tiangong-1, which is now hurtling towards the Earth in an uncontrolled re-entry. The earlier reports stated it could enter the atmosphere somewhere in April, but looks like it will arrive sooner than expected.
Although experts have not yet determined exactly where the out-of-control module will land, an Aerospace report detailed that it will likely re-enter somewhere in the northern US states, parts of South America, northern China, the Middle east, central Italy, northern Spain, New Zealand, the south of Africa or Tasmania in Australia. "Should this happen, any surviving debris would fall within a region that is a few hundred kilometres in size and centered along a point on the Earth that the station passes over".
Tiangong-1 is not created to withstand re-entry, as some spacecraft are.
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The Aerospace Corporation warns that it may be carrying a toxic and corrosive rocket fuel called hydrazine and has cautioned people not to touch or go near any debris they might discover, which may emit carcinogenic vapours.
"The weight was comparable to an empty soda can", Lottie Williams told FoxNews.com in 2011 while describing the incident. In 1997 she was struck by a piece of charred mesh believed to have come from a returning Delta II rocket.
But it's also important to keep an eye out for the massive Tiangong-1, as Jonathan McDowell, an astrophysicist from Harvard University, told the Guardian that "Tiangong-1 is big and dense so we need to keep an eye on it". Any surviving pieces would have fallen into the ocean.
The space station was launched in 2011 as a "potent political symbol" of China.
It was used for both manned and unmanned missions and visited by China's first female astronaut, Liu Yang, in 2012. While the space lab was expected to end its operation in 2013, the Chinese space agency chose to extend its lifespan for a few more years. China's first space station will come into collision with our planet within weeks.
In 1991, the Soviet Union's Salyut 7 space station crashed to Earth, scattering debris over the Argentinean town of CapitÃ¡n BermÃºdez.