20 Years of SLS and Constellation – 50 Years of the Same RS25 Engine and Each One Costs $145 Million

The last Space Shuttle lost was Columbia during STS-107 on February 1, 2003. The orbiter disintegrated during reentry over Texas due to damage from foam debris striking the left wing during launch, killing all seven crew members. This was the second (and final) major loss in the program. The first loss was Challenger on January … Read more