Tiangong-1 was visited three times by Chinese spacecraft during its operational life including two manned missions. China told the United Nations that its space station is on a downward spiral. Predictions are that it would crash to Earth somewhere between October 2017 and April 2018. When it was operational, the space lab orbited at 230 miles above Earth. It was only supposed to stay in orbit for two years. The International Space Station orbits at 250 miles above Earth.
Most of the space station is expected to burn up on re-entry. However, chunks weighing more than 200 pounds could make an impact on Earth. It’s very difficult to predict where it will fall. Even a slight push from the weather could send it from one continent to other. Normally,it’s unlikely that anyone will be harmed by the crash, or that anyone would see it at all, since it’s most likely that the lab will drop into the sea. The Tiangong 1 station was launched in 2011 as one of the great hopes of the Chinese ambitions in space.