Searching The SETI Ellipsoid With Gaia
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Aliens Could Have Been Watching Us for the Last 5,000 Years
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Gaia mission’s third data release shows astonishing galactic 3D maps
ESA’s spacecraft collected important information about nearby stars, the solar system’s motion and provided a map with the motions of 40 thousand stars in the Milky Way. It’s the best available map we have of our galaxy and it looks stunning.
Image credits: ESA.
Gaia is an ESA mission to build a 3D map of the Milky Way. Last week the collaboration released the third early data release, the first final release will happen in 2022. Despite being in operation for only 34 months, the Gaia telescope was able to collect around 1.8 billion sources. Gaia’s ambitious mission is to chart a 3D map of our galaxy, revealing its composition and evolution.