Recently, a fragment from China’s Long March 5B rocket, weighing about 25 tons, plummeted toward Earth at a speed of about 15,000 mph. Although part of the fragment burned up on re-entry, the rest fell to Earth. This incident has led to anxiety and reprimands from the world. The uncontrolled return of rocket’s core stage has also raised questions about the responsibility for “space junk.”

The Long March 5B rocket was used by China to launch the Wentian module into space, on July 24 for the Tiangong space station’s construction. The Chinese Communist Party later announced that debris from a rocket that lifted part of China’s new space station into orbit had fallen into the sea in the Philippines.