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General
Some images of the drop tower belonging to the National Microgravity Laboratory. The tower is used to simulate low-gravity/micro-gravity environment. Located in Beijing, it was built in 2003. With a height of 116 meters above ground and 8 meters below ground, it's the highest drop tower in Asia. The tower is capable of simulating microgravity (as low as 0.00001g) for 3.6 seconds. It was also used to verify the performance of Tianwen-2's robotic arm in microgravity environment, which is crucial to its ability to obtain astroid samples.