Space Launch System (Paperback)

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Space Launch System, or SLS, is a Shuttle-Derived heavy launch vehicle being designed by NASA, following the cancellation of the Constellation Program, to replace the Space Shuttle after its retirement. The NASA Authorization Act of 2010 envisions the transformation of the Ares I and Ares V vehicle designs into a single launch vehicle usable for both crew and cargo. It is to be upgraded over time with more powerful versions. The initial capability of the core elements, without an upper stage, should be for between 70 tons and 100 tons into LEO in preparation for transit for missions beyond low-Earth orbit. With the addition of integrated upper Earth departure stage the total lift capability of the Space Launch System should be 130 tons or more. It is expected to be operational by 2016.