Thanks to the Chinese, a large space junk almost equals the size of a school bus will be falling to earth uncontrolled.
Tiangong-1 is China’s first space station and laboratory launched in 2011. The Chinese Space Agency lost contact with this facility in 2016. This will be the largest space junk to fall back to Earth this year, It is not close to the controlled re-entry of NASA’s 74 tonne Skylab in 1979 which landed in Western Australia and scattered pieces of space debris over hundreds of miles. The US was there after fined $400 for littering by Australian Authorities.
This re-entry of Tiangong-1 unlike Skylab will be uncontrolled and more likely to touch down on Saturday or Sunday. It is traveling at a speed of 4/5 miles per second.
Over 100 tonnes of space junk fall to earth each year. They come from expired satelites, old rocket parts and space debris which usually burn up as the brush through our atmosphere.
Tiangong-1 will impact around the ends of 43 degrees north and 43 degrees south. Not to worry about casualties though. The probability that space debris might hit a human is 1 in a billion so people can go about their activities without worrying over an object falling on them from space.