On this day in space! Sept. 3, 2006: Europe's SMART-1 spacecraft crashes into the moon in lunar death dive

space.com Sep 4, 2026

On this day in space! Sept. 3, 2006: Europe’s SMART-1 spacecraft crashes into the moon in lunar death dive

Curated by Shubham · TechCapsules · Sep 4, 2026

AI-summarised brief · reviewed before publication

On 3 September 2006 the European Space Agency’s SMART‑1 probe deliberately impacted the Moon after a three‑year lunar mission. Launched in 2003 as the first ESA spacecraft to reach the Moon, SMART‑1 was the inaugural flight of the Small Missions for Advanced Research in Technology programme and tested a solar‑electric ion engine powered by xenon. While orbiting, it mapped the surface, searched for water‑ice signatures and studied mineral composition. Mission controllers extended the planned six‑month stay through a series of engine burns, ultimately allowing the craft to crash at 4,473 mph in the region dubbed “Lake of Excellence.” Earth‑based telescopes recorded the flash, and NASA’s Lunar Reconnaissance Orbiter later imaged a 4‑metre crater and 20‑metre gouge. The impact provided data on kinetic collisions.

💡 Why It Matters

· SMART‑1’s successful use of solar‑electric propulsion proved a low‑cost pathway for deep‑space missions, a concept now powering ESA’s BepiColombo and several NASA probes.

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