European Space Agency 's Gaia has been tasked with making a 3D map of the Milky Way . Telescope so sensitive that makers say it could measure a human thumbnail from Moon . Gaia , which lifted off from French Guiana , has been tasked with mapping the Milky Way in greater detail than ever before . One of Gaia 's objectives is to help in hunt for exoplanets . Comment:
European Space Agency 's Gaia has been tasked with making a 3D map of the Milky Way . Telescope so sensitive that makers say it could measure a human thumbnail from Moon . One of Gaia 's objectives is to help in hunt for exoplanets . Comment: