European Space Agency 's Gaia has been tasked with creating a 3D map of the Milky Way . Telescope so sensitive that makers say it could remove a human thumbnail from Moon . One of Gaia 's objectives is to help in the hunt for exoplanets -- new worlds beyond our own solar system . One of Gaia 's objectives is to help in hunt for exoplanets . Mission objective for drawing up most accurate map of the galaxy .
European Space Agency 's Gaia has been tasked with creating a 3D map of the Milky Way . Telescope so sensitive that makers say it could remove a human thumbnail from Moon . One of Gaia 's objectives is to help in hunt for exoplanets . Mission objective for drawing up most accurate map of the galaxy .