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However, the mission was short-lived as the spacecraft landed on the slope of a crater, broke some landing gear and toppled over.

It seems to have touched down with one wheel first, Mr Chan told the BBC, which might have caused the landing gear to collapse on impact.

The plane crashed on its second landing attempt when the landing gear did not emerge.

They have also focused on why the Boeing 737-800 did not have its landing gear down when it hit the runway.

This could prolong the search for answers as to why this plane was forced to land without its landing gear.