The Chinese space laboratory, Tiangong 1, is expected to enter the Earth's atmosphere between Saturday and Monday, the Chinese space agency said.
"It will not crash on the ground as violently as in science fiction, but it will crumble into the Earth's atmosphere and look like fireworks in the sky," said the space authorities in Beijing. "It's a spectacular display in the sky like meteor showers."
China's Foreign Ministry said on Friday that large parts of the Tiangong 1 space station are unlikely to land on the planet and that Beijing is in close contact with the United Nations on the development of the process.
According to China's space program, no one knows for certain where debris will fall.