What is NASA’s Moon Base programme, why it wants India to be part of it? | Explained
NASA formally invited India to join its Moon Base programme during the ninth India-US Civil Space Joint Working Group meeting held in New Delhi
The Moon Base initiative, officially launched in March 2026, is a two-phased NASA programme aimed at establishing a sustained human outpost near the lunar South Pole over the next decade
The invitation builds on India's Chandrayaan-3 mission, which achieved a soft landing near the lunar South Pole in August 2023 — the first country to do so
NASA is already working with private partners such as Blue Origin, Astrobotic, Intuitive Machines, Firefly Aerospace, Lunar Outpost and Astrolab on hardware for the outpost
The invitation follows recent milestones in India-US space cooperation, including the joint NISAR Earth-observation satellite mission and an Indian astronaut's flight to the International Space Station
The Artemis Accords and India's Membership
The Artemis Accords are a set of non-binding political commitments, first announced by NASA and the US State Department in 2020, that establish principles for safe, transparent and sustainable civil exploration of the Moon, Mars, comets and asteroids. They operationalise provisions of the 1967 Outer Space Treaty for the emerging era of lunar and planetary exploration rather than creating new binding international law.
Key Details
- India signed the Artemis Accords on 21 June 2023, becoming the 27th signatory nation; the signing coincided with a state visit by the Prime Minister to the United States
- The Accords lay down 10 core principles, including transparency in space activities, interoperability of systems, release of scientific data, registration of space objects, and deconfliction of activities in "safety zones" around lunar operations
- As a non-binding framework, the Accords do not override or amend the Outer Space Treaty, 1967 (India is a signatory) or the Moon Agreement, 1979 (India has not signed); they are widely read as the US-led alternative to a fresh multilateral moon treaty
- Signatory count has grown from the original 8 nations (2020) to over 50 as of 2026, with India among the earlier signatories from the Global South
India's Artemis Accords membership, combined with the Chandrayaan-3 South Pole landing, is the direct basis on which NASA has invited India into the Moon Base programme's human-outpost architecture.
NISAR — India-US Joint Earth Observation Mission
NISAR (NASA-ISRO Synthetic Aperture Radar) is described as the first roughly equal-cost joint satellite mission between NASA and ISRO, built to monitor changes in Earth's land and ice surfaces using dual-frequency radar.
Key Details
- Launched on 30 July 2025 aboard ISRO's GSLV-F16 from the Satish Dhawan Space Centre, Sriharikota
- NASA contributed the L-band Synthetic Aperture Radar (L-SAR) payload, a high-rate telecom subsystem, GPS receivers and a 12-metre deployable antenna; ISRO contributed the S-band SAR (S-SAR) payload, the spacecraft bus, and the GSLV-F16 launch vehicle
- NISAR is the first satellite to carry two different SAR frequency bands (L-band and S-band) on a single platform, enabling near-global surface deformation and ice-sheet monitoring
- Falls under the broader India-US Civil Space Joint Working Group framework, the same forum through which the Moon Base invitation was extended
NISAR is cited as proof-of-concept for large-scale India-US space collaboration, and its success is a key reason NASA is now willing to extend the partnership from Earth-observation into deep-space human exploration infrastructure.
The TRUST Initiative — Framework for the Cooperation
TRUST (Transforming the Relationship Utilizing Strategic Technology) is the umbrella framework, launched by the two governments in February 2025, that structures India-US cooperation across critical and emerging technologies, including space.
Key Details
- Announced in February 2025, TRUST spans six domains: artificial intelligence, semiconductors, quantum technology, biotechnology, defence and energy, alongside civil space cooperation
- Under TRUST, the two governments committed to an AI infrastructure roadmap and announced "INDUS Innovation" to deepen industry-academia partnerships
- Civil space cooperation, including a joint NASA-ISRO mission architecture, was flagged as a specific TRUST deliverable at its launch — the Moon Base invitation is a continuation of this stated commitment
- TRUST operates alongside, but distinct from, the longstanding India-US Civil Space Joint Working Group (est. as part of the broader Indo-US Science and Technology cooperation framework), which is the operational body that hosted the ninth round of talks where the invitation was extended
The Moon Base invitation is a concrete deliverable of the TRUST framework's space pillar, translating the February 2025 political commitment into a specific mission-level collaboration.
Why the Lunar South Pole — Scientific and Strategic Significance
The lunar South Pole is the focus of nearly all current human lunar exploration plans (NASA's Artemis/Moon Base, and other national programmes) because of its permanently shadowed craters, which are cold enough to trap volatile compounds, including water ice, for billions of years.
Key Details
- Water ice in these permanently shadowed regions could, in principle, be processed into drinking water, breathable oxygen and rocket propellant (via electrolysis into hydrogen and oxygen), reducing the cost of sustaining a long-duration human presence
- The South Pole also offers near-continuous solar illumination at certain elevated rim locations ("peaks of eternal light"), useful for solar power generation despite the Moon's long day-night cycle
- Chandrayaan-3's Vikram lander touched down at approximately 69° S lunar latitude in August 2023, the southernmost successful lunar landing at the time, ahead of subsequent Indian and international missions targeting the same region
- NASA's Artemis programme (the crewed precursor effort to Moon Base) aims to land astronauts near the South Pole; Moon Base is envisaged as the follow-on infrastructure that would allow multi-week to multi-month stays rather than short visits, serving as a testbed for eventual Mars missions
India's demonstrated capability to land precisely in this high-value, technically difficult South Pole region is the core credential NASA has cited in inviting ISRO to help build sustained lunar surface infrastructure there.
- Chandrayaan-3 South Pole landing: 23 August 2023 (~69°S lunar latitude)
- India signed the Artemis Accords: 21 June 2023 (27th signatory nation)
- NISAR launch: 30 July 2025, via GSLV-F16 from Sriharikota
- Indian astronaut Shubhanshu Shukla flew to the ISS aboard Axiom Mission 4, launched 25 June 2025 — India's second astronaut in space after Rakesh Sharma (1984)
- TRUST Initiative launched: February 2025, covering AI, semiconductors, quantum tech, biotechnology, defence, energy and space
- NASA's Moon Base programme officially launched: March 2026, envisaged as a two-phased, decade-plus effort
- India-US Civil Space Joint Working Group meeting where the invitation was extended: its ninth session, held in New Delhi