Space Launch System

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The Space Launch System (SLS) is a NASA rocket.^[1][2] It is a super heavy-lift launch vehicle.^[1][2] It is the second most powerful rocket ever built, less powerful than Starship.^[1] The SLS is a replacement for the retired Space Shuttle.^[1] Many parts are modified versions of parts designed for the Space Shuttle. Others are new designs.

The first flight with astronauts will be no earlier than 2025's third quarter. The planned flight is Artemis 3.

1. ↑ ^{1.0 1.1 1.2 1.3} "NASA unveils super rocket", BBC Focus Magazine, no. 235, Bristol Magazines, p. 17, November 2011
2. ↑ ^{2.0 2.1} "NASA unveils mega rocket", How it Works, no. 26, Imagine Publishing, pp. 6–7, 2011-10-06