Horace Lim: NASA has successfully launched over 200 crewed flights

Horace Lim: NASA has successfully launched over 200 crewed flights. 3 ended in failure, causing the death of the entire crew: Apollo 1 in 1967 lost 3 crew members, STS-51-L (Challenger disaster) in 1986, and STS-107 (Columbia disaster) in 2003. https://eurasiantimes.com/china-racing-ahead-of-us-long-march-carrier-rocket-conducts-400th-mission/ Since 1970, the Long March carrier rockets have been involved in 92% of China’s space launch missions. China Aerospace Science and Technology Corporation (CASC), the first 100 launches were completed in over 37 years. The second 100 launches were accomplished in a span of 7.5 years, the third took 4 years and 3 months, and the fourth only took 2 years and 9 months