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How much did ESA's Gaia space telescope cost?
Mission cost for the 3D map of the Milky Way
💡 Mapped almost 2 billion stars in 3D. A typical ESA flagship science mission.
Answer
€740M
€740,000,000 · Total cost · 2013
Gaia measured the positions of almost 2 billion stars – more precisely than ever before.
Source: ESA
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