Gaia (spacecraft)
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Gaia is a retired space observatory of the European Space Agency that was launched in 2013 and operated until March 2025. The spacecraft was designed for astrometry: measuring the positions, distances
Artist's impression of the Gaia spacecraft
Model of Gaia at Paris Air Show 2013
Gaia from different angle
Gaia at its final phase of construction, 2013
Lagrange point
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In celestial mechanics, the Lagrange points, also called the Lagrangian points or libration points, are points of equilibrium for small-mass objects under the gravitational influence of two massive or
Gaia (spacecraft)
…Arianespace using a Soyuz ST-B/Fregat-MT rocket flying from Kourou in French Guiana. The spacecraft operated in a Lissajous orbit around the Sun–Earth L2 Lagrangian point. The science observation officially ended on 15 January 2025. The Gaia space telescope had its roots in ESA's Hipparcos mission (1989–1993). Its mission…
The Lagrangian L2 point for the Sun–Earth system