Why Are We Going Back to the Moon?
Fifty years after Apollo, NASA — along with international partners and commercial companies — is preparing to return humans to the lunar surface under the Artemis program. But this isn't a replay of the 1960s space race. Artemis has broader scientific goals, a longer-term vision, and a fundamentally different approach to how spaceflight gets done.
The Core Goals of Artemis
NASA has outlined several key objectives for the Artemis program:
- Land the first woman and first person of color on the Moon — expanding the representation of who explores space.
- Establish a sustained human presence near and on the Moon — not just flags and footprints, but long-duration stays.
- Explore the lunar south pole — a region never visited before, where permanently shadowed craters are believed to hold significant deposits of water ice.
- Develop technologies and experience needed for future crewed missions to Mars.
The Key Hardware
Space Launch System (SLS)
The SLS is NASA's most powerful rocket since the Saturn V. It is designed to launch the Orion spacecraft and, in its most powerful configuration, deliver massive payloads to deep space destinations including the Moon and eventually Mars.
Orion Spacecraft
Orion is the crew vehicle designed to carry up to four astronauts. It includes a crew module for living during transit and a service module (provided by the European Space Agency) that supplies propulsion, power, and life support.
Gateway
Gateway is a small space station planned for lunar orbit. It will serve as a staging point for surface missions, a science platform, and a waypoint for future deep space exploration. Unlike the ISS, it won't be permanently crewed.
Human Landing System (HLS)
SpaceX's Starship was selected as the initial Human Landing System — the vehicle that will actually ferry astronauts from lunar orbit down to the surface and back.
Artemis Mission Overview
| Mission | Type | Key Objective |
|---|---|---|
| Artemis I | Uncrewed | Test SLS and Orion around the Moon (completed 2022) |
| Artemis II | Crewed flyby | First crewed flight of Orion around the Moon |
| Artemis III | Crewed landing | First human lunar landing since Apollo 17 (1972) |
| Artemis IV+ | Crewed + Gateway | Begin assembling Gateway and long-duration surface stays |
International and Commercial Partners
Artemis is a genuinely international endeavor. The Artemis Accords — a set of principles for peaceful and transparent space exploration — have been signed by dozens of nations. Key partners include:
- ESA (European Space Agency): Providing the Orion service module and Gateway modules.
- JAXA (Japan): Contributing Gateway habitation elements and cargo.
- Canadian Space Agency: Providing the Canadarm3 robotic system for Gateway.
- Commercial companies: SpaceX (HLS), Axiom Space (spacesuits), and various commercial lunar payload services.
The Bigger Picture: A Stepping Stone to Mars
Every technology tested on and around the Moon — life support, long-duration spaceflight, in-situ resource utilization (such as extracting water ice) — directly informs how humans will eventually travel to Mars. The Moon, in this vision, isn't the destination. It's the proving ground.
Artemis represents a generational commitment to expanding humanity's presence in the solar system, and the decisions made in this program will shape spaceflight for decades to come.