NASA’s Space Launch System (SLS) core stage for the Artemis 3 mission has been raised and positioned inside the Vehicle Assembly Building at Kennedy Space Center in Florida. Engineers are preparing to attach the four RS-25 engines that will power the rocket during its Moon-bound flight, currently scheduled for no earlier than 2027.

The core stage, the backbone of the SLS, stands 212 feet tall and houses cryogenic liquid hydrogen and liquid oxygen tanks to fuel the engines. Once fully assembled, the rocket will undergo final checks before being rolled to the launch pad for the uncrewed mission. Artemis 3 is designed to test the Human Landing System, a critical component for returning astronauts to the lunar surface.

Artemis 3 mission objectives and timeline

Artemis 3 follows the uncrewed Artemis 1 and crewed Artemis 2 missions, both aimed at validating SLS and Orion spacecraft performance. Unlike its predecessors, Artemis 3 will carry astronauts to lunar orbit, where they will dock with the SpaceX-built Human Landing System. Two astronauts are expected to land near the Moon’s south pole, a region targeted for its potential water ice deposits and scientific value.

NASA has selected SpaceX to develop the lunar lander under a $2.9 billion contract awarded in 2021. The company is modifying its Starship vehicle to meet NASA’s requirements for crewed lunar landings. SpaceX has conducted multiple test flights of Starship prototypes, though orbital and lander-specific tests are ongoing.

Preparations and challenges ahead

The Artemis program faces technical and schedule pressures, including delays in lander development and upgrades to the SLS rocket. NASA officials have emphasized that Artemis 3 remains on track for a 2027 launch, though contingency plans exist for schedule adjustments. The agency continues to test components like the Orion spacecraft’s heat shield and life support systems.

Engineers at NASA’s Michoud Assembly Facility in Louisiana built the core stage, which was transported to Florida via the Pegasus barge. The stage’s arrival in July 2024 marked a major milestone after years of development and testing. Additional hardware, including the twin solid rocket boosters, is also being prepared for assembly.

Broader implications for lunar exploration

Artemis 3 is expected to be the first crewed Moon landing since Apollo 17 in 1972. Success could pave the way for a sustained human presence on the Moon under the Artemis program, supporting scientific research and serving as a stepping stone for future Mars missions. International partners, including the European Space Agency and Japan Aerospace Exploration Agency, are contributing to lunar surface operations and Gateway station development.

NASA plans to follow Artemis 3 with additional missions to build infrastructure on the Moon, including habitats and rovers. These efforts align with the agency’s goal of establishing a sustainable lunar economy and preparing for deep-space exploration. The program also aims to demonstrate international and commercial collaboration in space exploration.

What You Need to Know

  • Source: Space.com
  • Published: May 11, 2026 at 20:00 UTC
  • Category: Science
  • Topics: #space · #astronomy · #nasa · #science · #artemis · #vehicle-assembly-building

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Curated by GlobalBR News · May 11, 2026

🇧🇷 Resumo em Português

A ambiciosa missão Artemis 3, que promete devolver humanos à Lua após mais de meio século, deu um passo decisivo rumo à concretização: o estágio principal do foguete lunar foi içado dentro do Vehicle Assembly Building, em preparação para a instalação dos motores. Com previsão de lançamento para 2027, a missão não apenas representa um marco para a exploração espacial global, como também desperta interesse no Brasil, país que tem se posicionado cada vez mais como um ator estratégico em ciência e tecnologia, especialmente na área aeroespacial.

O contexto é de extrema relevância para o Brasil, que integra o programa Artemis da NASA desde 2020 por meio de um acordo bilateral, e já contribui com pesquisas e desenvolvimento tecnológico. A participação brasileira, ainda que modesta em comparação a potências como os EUA, abre portas para colaborações em ciência lunar, mineração espacial e até mesmo na formação de novos profissionais brasileiros. Além disso, o sucesso da Artemis 3 poderia impulsionar iniciativas nacionais, como o programa de satélites e o futuro lançamento do foguete nacional VLM, reforçando a soberania do país no setor.

Se tudo correr como planejado, a missão não só trará astronautas de volta à superfície lunar pela primeira vez desde 1972, como também pavimentará o caminho para bases permanentes na Lua — um objetivo que, nos próximos anos, deve mobilizar governos e empresas ao redor do mundo, inclusive no Brasil.

🇪🇸 Resumen en Español

La NASA avanza un paso más en su ambicioso regreso a la Luna con la colocación del núcleo del cohete Artemis 3, un hito técnico que marca el ritmo hacia la primera misión tripulada en décadas. Tras superar pruebas críticas, la etapa central del Sistema de Lanzamiento Espacial (SLS) fue izada e instalada en el Edificio de Ensamblaje de Vehículos, donde ahora aguarda la integración de sus motores RS-25, motores heredados de los transbordadores espaciales pero modernizados para esta nueva era.

Este avance no solo simboliza el compromiso de la agencia con el programa Artemis, que busca no solo repetir el alunizaje del Apolo 17 sino establecer una presencia sostenible en el satélite, sino que también reaviva el interés científico y tecnológico en el espacio profundo. Para los hispanohablantes, especialmente en países con creciente inversión en ciencia, la misión Artemis 3 representa una oportunidad para vislumbrar un futuro donde la exploración lunar no es solo un logro estadounidense, sino un esfuerzo global con posibles colaboraciones internacionales. Además, el éxito de este cohete reforzaría el papel de la NASA como líder en innovación, inspirando a nuevas generaciones a mirar hacia las estrellas.