China gears up for deep space missions after collecting 1935 grams of lunar far side samples SpaceNewsChina's probe returns from the far side of the moon The EconomistChang'e-6: China's space probe returns with rare Moon rocks BBC.comChina says U.S. can't stop it from taking 'giant steps' in space The Washington PostChina's lunar probe brought back 1.9kg of rock samples, space agency says South China Morning Post