China's 23-day moon sample-return mission explained

A Chinese Long March-5 Y5 rocket is being prepped to launch a probe to land on the moon, collect samples and return them to Earth. The Chang'e-5 mission, consisting of 4 modules, is scheduled to last 23 days, from launch to return to Earth. -- China rolls out Long March 5 rocket for Chang'e 5 moon sample-return mission launch: https://www.space.com/china-moon-sample-return-change-5-rollout Credit: Space.com | footage & animations courtesy: China Central Television | produced & edited by Steve Spaleta (http://www.twitter.com/stevespaleta)