NASA Places Final Parts on Its Space Launch System Due to Send a Rocket to the Moon

NASA Places Final Parts on Its Space Launch System Due to Send a Rocket to the Moon

This will be NASA's first moon landing since Apollo 11.

Source: Interesting Engineering

NASA’s team of engineers at the Michoud Assembly Facility (MAF) in New Orleans secured the final five components of the Space Launch System (SLS) on 19 September. 

This will enable NASA’s next Moon rocket, the Orion, to launch on its lunar mission, the first one since Apollo 11 landed on the Moon in 1969. 

The flight will be uncrewed and is due to launch on 2021. The next crewed mission is meant for 2024. 

The SLS assembly

The final piece to be mounted onto the SLS was a 64 meter-tall (212 feet) core stage that was the engine part. This section will be the attachment point for the four RS-25 engines, which have the ability to create two million pounds of thrust.

“Now, to complete the stage, Nasa will add the four RS-25 engines and complete the final integrated avionics (electronics) and propulsion functional tests,” said Julia Bassler, NASA’s SLS stages manager.

NASA Places Final Parts on Its Space Launch System Due to Send a Rocket to the Moon
The core stage test team recently completed structural testing confirming the stage’s liquid hydrogen tank structural design is good for conditions that will be experienced in the rocket’s initial configuration, called Block 1, during the Artemis I launch. The 149-foot test article was lifted into a test stand at NASA’s Marshall Space Flight Center in Huntsville, Alabama, where engineers put the tank through the paces during 37 separate test cases that simulated the stresses of launch that the SLS rocket experiences during flight. Testing will continue later this year to show the tank’s structural design is adequate for future designs of the vehicle as it evolves to a Block IB configuration and missions with more extreme forces. Source: Tyler Martin/NASA.

Bassler continued, “This is an exciting time as we finish the first-time production of the complex core stage that will provide the power to send the Artemis 1 mission to the Moon.”

Since being announced in 2010, this is an exciting moment for the SLS assembly crew, who have faced delays and cost overruns since the start of the project. 

The next Moon mission

NASA is aiming to send the first woman and man to the lunar South Pole by 2024. The first crewed mission will follow after Artemis 1’s launch in 2022, which aims to send astronauts to loop around the Moon — without landing. 

During the coming months, the SLS’s engineers will work on attaching the RS-25s, connecting them to the main systems inside the engine. 

NASA Places Final Parts on Its Space Launch System Due to Send a Rocket to the Moon
The United Launch Alliance Delta IV Heavy rocket with NASA’s Orion spacecraft mounted atop. Source: Bill Ingalls/NASA.

The SLS makes up the core stage upon which the Orion spacecraft will be placed, along with two solid rocket boosters (SRBs).

The Orion spacecraft is the U.S.’s next-generation crewed spacecraft, with the capacity to go to the Moon, as well as asteroids and other deep space missions. 

NASA’s longterm goal is to build Gateway — a space station that will be set in lunar orbit. Gateway won’t be ready by 2024, however, astronauts will have an alternative ‘lite’ Gateway option for docking. 

John Shannon, program manager for the SLS at Boeing — the main contractor building NASA’s rocket — said: “There are other rockets on the drawing board right now. But as far as a human-rated vehicle that’s purpose-built to take Orion and parts of the Gateway station or landers to the Moon, SLS is really the only one.”

The next steps for the rocket is to undergo a test run at the end of the year. Jennifer Boland-Masterson MAF’s operations director for Boeing said: “Boeing expects to complete final assembly of the Artemis 1 core stage in December.” 

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