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Gaia Space Observatory

The Gaia space-observatory family represents ESA's Astrium-built astrometry spacecraft, which surveyed the sky from a Lissajous orbit around Sun-Earth L2 and ended spacecraft operations in a heliocentric retirement orbit in 2025.

Gaia Space Observatory
ESA/ATG medialab; ESA/Gaia/DPAC (acknowledgement: A. Moitinho) · CC BY-SA 3.0 IGO asset; the exact Wikimedia Commons file page identifies this image as the 1920px rendition of ESA’s Gaia-observes-the-Milky-Way composite, credits ESA/ATG medialab for the spacecraft and ESA/Gaia/DPAC for the Milky Way background with acknowledgement to A. Moitinho, records the ESA source, and provides the CC BY-SA 3.0 IGO reuse terms. Reuse is permitted with appropriate credit, a link to the license, an indication of changes, and ShareAlike for adaptations; do not imply endorsement. ESA logos and identifiers and other protected marks may require separate clearance; verify before commercial, promotional, merchandise, or other uses beyond ordinary factual or editorial reuse. · Source
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Identity

Aliases
Gaia spacecraftESA billion-star surveyorGlobal Astrometric Interferometer for Astrophysics
Family Name
Gaia
Full Name
Gaia Space Observatory
Roles
observatoryresearch
Status
retired
Type
spacecraft

Details

Description
The Gaia space-observatory family represents ESA's Astrium-built astrometry spacecraft, which surveyed the sky from a Lissajous orbit around Sun-Earth L2 and ended spacecraft operations in a heliocentric retirement orbit in 2025.
First Flight Year
2,013
Last Flight Year
2,025
Manufacturer
Operator
Spacecraft Specs
Launch Mass Kg
2,030
Reusability
expendable

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Assets & Meta

Creation Time
July 17, 2026 at 02:59:26 UTC
Updated Time
August 14, 2026 at 11:51:15 UTC

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Search Name
Gaia Space Observatory Gaia spacecraft ESA billion-star surveyor Global Astrometric Interferometer for Astrophysics