Gaia is Now Finding Planets. Could it Find Another Earth?

Aliens with a spacecraft similar to the ESA's Gaia could potentially detect Earth. Can we use Gaia to find rocky planets around other stars?

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Wuhu ,Anhui ,China ,Dong Hong Wu ,Department Of Physics ,Anhui Normal University ,Solar System Through Astrometry ,While Gaia ,Extraterrestrial Intelligences ,Solar System ,Gaia Catalog ,