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:
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 . Mission applauded for building up most accurate charts of the cosmos .