About China’s Tiangong-1 space lab:
China’s Tiangong-1 space lab also named as “Heavenly Palace” was launched in 2011 and described as China’s potent political symbol and also a prototype for china’s ultimate space goal.
Mr.Mcdowell states that the actual plan was to retire the Tiangong-1 soon and worried about Tiangong-2 might not placed successfully. so they decided to keep Tiangong-1 as a backup.
It was used for manned Shenzhou 9 mission docked in June 2012 and unmanned Shenzhou 8 mission docked on November 2011.The first female astronauts visited are, Liu Yang and Wang Yaping .
But the China space lab didn’t stated any reason why it lost its control to the United States on march 2016. Roger Handberg the professor at the University of Central Florida said that due to the ran out of fuel, China has lost its control.
As per the reports:
In 2016 , the space engineering office states that the service period of space la has been ended. It is about 8.5 tonnes chinese space station location which lost its control by losing its telemetry link and might crash the earth within few months.
McDowell stated that the most of craft get burned in the atmosphere and only a few amount of the craft ie.,about 100kgs might fall to the earth with less amount of damage.And also stated that it is difficult to predict where the craft is going to fall on the earth.He also stated that a slight change in the atmospheric conditions falling space debris might change from one continent to the next.
In the past there has been many uncontrollable space crafts fall to the earth but none of them cause much damage to the people.
In 1991 the Soviet Union’s 20-tonne Salyut 7 space station and another 20-tonne spacecraft called Cosmos 1686 crashed to the earth. They created a scattering debris over the town of Capitán Bermúdez in Argentina.
In the past 50 years it is estimated that more than 5,400 metric tons of space materials to have survived re-entry with no casualities reported. Most space debris fallen down in the southern Pacific Ocean which is named as a space graveyard.
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