GAIA should in principle be able to measure the distances of stars located all through the Milky Way Galaxy and outside it up to 50k/s
Explanation:
Gaia should be able to measure distance of stars located all across the Milky Way Galaxy, but not in more distant galaxies. Like The Andromeda galaxy.
Throughout the Milky Way galaxy with diameter of about 100,000 light-years, but not to stars in the Andromeda galaxy with distance of 2.5 million light-years or more.
The Fertile Crescent is bounded on the west by the Mediterranean Sea and on the East by the Persian Gulf. The Tigris and Euphrates rivers flow through the heart of the Fertile Crescent.