All Four Engines Are Attached to the SLS Core Stage for Artemis I Mission

four RS-25 engines mated to Space Launch System core stage for Artemis 1 mission. (Credit: NASA/Eric Bordelon)

NEW ORLEANS (NASA PR) — All four RS-25 engines were structurally mated to the core stage for NASA’s Space Launch System (SLS) rocket for Artemis I, the first mission of SLS and NASA’s Orion spacecraft. To complete assembly of the rocket stage, engineers and technicians are now integrating the propulsion and electrical systems within the structure.

The completed core stage with all four RS-25 engines attached is the largest rocket stage NASA has built since the Saturn V stages for the Apollo Program that first sent Americans to the Moon. T

he stage, which includes two huge propellant tanks, provides more than 2 million pounds of thrust to send Artemis I to the Moon. Engineers and technicians at NASA’s Michoud Assembly Facility in New Orleans attached the fourth RS-25 engine to the rocket stage Nov. 6 just one day after structurally mating the third engine.

The first two RS-25 engines were structurally mated to the stage in October. After assembly is complete, crews will conduct an integrated functional test of flight computers, avionics and electrical systems that run throughout the 212-foot-tall core stage in preparation for its completion later this year.

This testing is the first time all the flight avionics systems will be tested together to ensure the systems communicate with each other and will perform properly to control the rocket’s flight.

Integration of the RS-25 engines to the massive core stage is a collaborative, multistep process for NASA and its partners Boeing, the core stage lead contractor, and Aerojet Rocketdyne, the RS-25 engines lead contractor.

White House Wants Congress to Provide More Money for Artemis, Dump SLS as Europa Mission Launcher

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. (Credits: NASA/Tyler Martin)

by Douglas Messier
Managing Editor

The White House wants Congress to provide more money for the Artemis moon landing program, and to save about $1.5 billion by dropping the requirement that NASA launch the Europa Clipper mission to Jupiter’s icy moon on the Space Launch System (SLS).

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Boeing Proposes ‘Fewest Steps to the Moon’ for NASA’s Human Lander

Following exploration of the lunar surface by astronauts, the crew lifts off from the moon inside the Ascent Element in this artist concept. The Descent Element remains on the moon having already performed its role of flying the crew from lunar orbit to the surface. (Credit: Boeing)

HOUSTON, Nov. 5, 2019  (Boeing PR) — Boeing [NYSE: BA] today submitted a proposal to NASA for an integrated Human Lander System (HLS) designed to safely take astronauts to the surface of the moon and return them to lunar orbit as part of the Artemis space exploration program.

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NASA Attaches First of 4 RS-25 Engines to Artemis I Rocket Stage

An RS-25 engine is installed on the first Space Launch System core. (Credit: NASA/Jude Guidry)

NEW ORLEANS (NASA PR) — Engineers and technicians at NASA’s Michoud Assembly Facility in New Orleans have structurally mated the first of four RS-25 engines to the core stage for NASA’s Space Launch System (SLS) rocket that will help power the first Artemis mission to the Moon.

Integration of the RS-25 engines to the recently completed core stage structure is a collaborative, multistep process for NASA and its partners Boeing, the core stage lead contractor, and Aerojet Rocketdyne, the RS-25 engines lead contractor. To complete the installation, the technicians will now integrate the propulsion and electrical systems. 

The installation process will be repeated for each of the four RS-25 engines. The four RS-25 engines used for Artemis I were delivered to Michoud from Aerojet Rocketdyne’s facility at NASA’s Stennis Space Center near Bay St. Louis, Mississippi, in June.

The engines, located at the bottom of the core stage in a square pattern, are fueled by liquid hydrogen and liquid oxygen. During launch and flight, the four engines will fire nonstop for 8.5 minutes, emitting hot gases from each nozzle 13 times faster than the speed of sound. The completed core stage with all four engines attached will be the largest rocket stage NASA has built since the Saturn V stages for the Apollo Program.

NASA is working to land the first woman and next man on the Moon by 2024. SLS is part of NASA’s backbone for deep space exploration, along with Orion and the Gateway in orbit around the Moon. SLS is the only rocket that can send Orion, astronauts and supplies to the Moon on a single mission.

Bridenstine to Give Public Update on NASA’s Moon Program on Friday

Astronauts on a future lunar walk. (Credit: NASA)

WASHINGTON, DC (NASA PR) — The public is invited to join NASA Administrator Jim Bridenstine at 9:40 a.m. EDT Friday, Oct. 25, for an update on the agency’s Artemis program and the critical role international partnerships have in returning astronauts to the Moon and going on to Mars.

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Video: The First Artemis Mission Around the Moon

Video Caption: Our Artemis program will return humans to the Moon by 2024. Artemis I, the first Artemis mission, will test all of the human rated systems in deep space — including the Orion spacecraft and Space Launch System rocket. This is its 26 day journey… in 30 seconds.

What is Artemis? https://go.nasa.gov/30P0EEq

China Launch Surge Left U.S., Russia Behind in 2018

Long March 2F rocket in flight carrying Shenzhou-11. (Credit: CCTV)

by Douglas Messier
Managing Editor

The year 2018 was the busiest one for launches in decades. There were a total of 111 completely successful launches out of 114 attempts. It was the highest total since 1990, when 124 launches were conducted.

China set a new record for launches in 2018. The nation launched 39 times with 38 successes in a year that saw a private Chinese company fail in the country’s first ever orbital launch attempt.

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Senate Appropriators Boost NASA’s Budget by $1.25 Billion

WASHINGTON, D.C. (Senate Appropriations Committee PR) – The Senate Committee on Appropriations today approved the FY2020 Commerce, Justice, Science, and Related Agencies (CJS) Appropriations Act, which makes investments to support law enforcement, economic prosperity, scientific research, space exploration, and other national priorities.

The $70.833 billion measure is $6.715 billion above the FY2019 enacted level and funds the U.S. Departments of Commerce and Justice, the National Aeronautics and Space Administration, the National Science Foundation, and related agencies. 

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NASA Joins Last of Five Sections for Space Launch System Rocket Stage

NASA finished assembling the main structural components for the Space Launch System (SLS) rocket core stage on Sept. 19. Engineers at NASA’s Michoud Assembly Facility in New Orleans fully integrated the last piece of the 212-foot-tall core stage by adding the engine section to the rest of the previously assembled structure. Boeing technicians bolted the engine section to the stage’s liquid hydrogen propellant tank. (Credit: NASA/Steven Seipel)

NEW ORLEANS (NASA PR) — NASA finished assembling and joining the main structural components for the largest rocket stage the agency has built since the Saturn V that sent Apollo astronauts to the Moon. Engineers at the agency’s Michoud Assembly Facility in New Orleans connected the last of the five sections of the Space Launch System (SLS) rocket core stage on Sept. 19. The stage will produce 2 million pounds of thrust to send Artemis I, the first flight of SLS and NASA’s Orion spacecraft to the Moon.

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GAO Report on SLS/Orion: Making Progress, But….

SLS core stage pathfinder is lifted onto the Stennis B-2 test stand (Credits: NASA/SSC)

by Douglas Messier
Managing Editor

The Government Accountability Office released another depressing review this week of NASA’s Artemis program, specifically looking at the space agency’s progress on the Space Launch System, Orion spacecraft and the exploration ground systems (EGS) required to support them.

Cristina Chaplain, GAO’s director of Contracting and National Security Acquisitions, summarized the report’s conclusions on Wednesday in testimony before the House Subcommittee on Space and Aeronautics.

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Pad 39B Water Flow Test Comes Through Loud and Clear

NASA continued its preparation for the Artemis I mission with a successful water flow test on the mobile launcher at Kennedy Space Center’s Pad 39B on Friday, Sept. 13. (Credits: NASA/Kim Shiflett)

By Jim Cawley
NASA’s Kennedy Space Center

NASA eclipsed another milestone in its plan to send the first woman and next man to the lunar surface by 2024 with the latest successful water flow test on the mobile launcher at Kennedy Space Center’s Pad 39B.

Using adjustments from the first water flow test event in July, the Friday, Sept. 13 exercise demonstrated the capability of the sound suppression system that will be used for launch of NASA’s Space Launch System (SLS) for the Artemis I mission.

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House Science Chairwoman Slams Trump Administration’s Artemis Lunar Plans

Astronauts on a future lunar walk. (Credit: NASA)

Opening Statement (Excerpt)

Chairwoman Eddie Bernice Johnson (D-TX)

Subcommittee on Space & Aeronautics Hearing:
Developing Core Capabilities for Deep Space Exploration: An Update on NASA’s SLS, Orion, and Exploration Ground Systems

Wednesday, September 18, 2019

….I also want to echo Chairwoman Horn’s comment about the lateness of NASA’s testimony. NASA was provided ample advance notice of this hearing and more than sufficient time to prepare testimony and have it reviewed by OMB and whomever else looks over NASA’s testimony these days. The fact that this testimony is overdue is not only frustrating, it leaves Members little opportunity to consider NASA’s testimony in advance of the hearing. If NASA and the Administration can’t meet simple hearing deadlines, it doesn’t inspire great confidence in their ability to meet the much harder deadline of landing astronauts on the Moon by 2024.

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NASA Prepares for Green Run Testing, Practices Lifting SLS Core Stage

SLS core stage pathfinder is lifted onto the Stennis B-2 test stand (Credits: NASA/SSC)

BAY ST. LOUIS, Miss. (NASA PR) — NASA cleared a milestone in preparation for Green Run testing of its Space Launch System (SLS) core stage with an Aug. 23/24 lift and installation of the core stage pathfinder simulator onto the B-2 Test Stand at Stennis Space Center near Bay St. Louis, Miss.

The lift and installation of the core stage pathfinder – a size and weight replica of the SLS core stage – is helping teams at Stennis prepare for the Green Run test series.

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Complete Orion Starts Testing for Shipping to Plum Brook

First image of the complete Orion spacecraft that will fly around the Moon on the Artemis-1 mission. (Credit: NASA–R. Sinyak)

KENNEDY SPACE CENTER, Fla. (ESA PR) — The first Orion spacecraft was unveiled in its entirety on 18 July at NASA’s Kennedy Space Center in Florida, USA. After assembling the European Service Module in Bremen, Germany, and the Crew Module Adapter and Crew Module in USA, the three elements of the spacecraft are now integrated into the full Orion that stands almost as high as a two-storey house.

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Orion’s Service Module Completes Critical Propulsion Test

WHITE SANDS, NM (NASA PR) — NASA is building a system to send astronauts to the Moon for Artemis missions, and that includes tests to make sure the Orion spacecraft is prepared to safely carry crew on an alternate mission profile in the face of unexpected problems. That capability was most recently demonstrated with a successful, continuous 12-minute firing of Orion’s propulsion system that simulated a possible alternate mission scenario.

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