NASA’s large SLS rocket unlikely to fly before at least late 2021


Enlarge / NASA Administrator James Bridenstine testifies before the Senate Commerce, Science and Transportation Committee on July 17, 2019. (credit: Win McNamee/Getty Images)

As recently as last month, both NASA planning documents and officials with Boeing said the space agency was still working toward a 2020 launch of the Artemis-1 mission. This is the first launch of the large, costly, and delayed Space Launch System rocket that NASA hopes will serve as the backbone for its efforts to explore the Moon and eventually Mars with humans.

This uncrewed test flight, which will boost an Orion capsule to the Moon, is the first of three main missions in NASA’s Artemis campaign to land humans on the Moon by 2024. However, for the first time, NASA Administrator Jim Bridenstine on Wednesday foreclosed the possibility of a 2020 launch date.

Twice during testimony before the US Senate Committee Commerce, Science, and Transportation, Bridenstine referenced 2021 as the expected launch date for Artemis-1. “I think 2021 is definitely achievable for the Artemis-1 launch vehicle,” Bridenstine said in response to a question from Sen. Roger Wicker, the Mississippi Republican who chairs the committee.

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