The Tiangong-1 was launched in 2011 and was used for both manned and unmanned missions by the country establishing itself into space research.
In 2016 China admitted it had lost control of Tiangong-1 and would be unable to perform a controlled re-entry.
It also cites that in the history of spaceflight, no one has ever been harmed from reentering space debris but does note that there has been one person struck by space debris.
While it is not certain where the module will land, a report from the Aerospace Corporation suggests it will re-enter somewhere between 43 degrees North and 43 degrees South latitudes - which covers parts of the US, South America, China, Italy, Spain, New Zealand, the Middle East and Australia. China announced in March 2016 that telemetry services with the space station stopped. "Their space station is a key part of their plans and they are actively preparing crews and experiments to fly once it is operational".
Since loss of contact over the past couple of years, the space lab's orbit has been decaying.
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Over the years, several space stations have crash-landed on Earth, but there haven't been any reports of deaths or injuries from the debris falling back from the space, except for one instance when a woman was hit by a small piece of debris but was uninjured.
That tells you that even though the retired space station is practically skimming the atmosphere, its ground track hasn't yet been impacted - and until that happens, there's no way to tell where it's going to hit.
Aerospace warned that the Chinese space station might be carrying a highly toxic and corrosive fuel called hydrazine on board. Williams was sure she'd found a piece of a shooting star. A team from NASA and other space organizations filmed the Japanese Hayabusa's 2010 reentry over central Australia.
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. It is expected that Tiangong-1's re-entry will be longer (and more dazzling) due to its greater size. Variations in the density of the upper layers of the atmosphere, along with the craft's orientation, physical composition, speed and location make it a finicky business.
Tiangong 1 re-entry, as of March 6, 2018, via ESA.
In 1991, the Soviet Union's Salyut 7 space station crashed to Earth, scattering debris over the Argentinean town of CapitÃ¡n BermÃºdez. The space station with spacecraft scattered over Argentina.