image 21-October-2017 21:27:12

A Viking galaxy found by Hipparcos shows how the Milky Way grew

The brightest of 12 early intruders into the Milky Way, newly identified with the help of ESA's Hipparcos satellite, is this star in the Draco constellation.


Last Update: 02 June 2014

For further information please contact: SciTech.editorial@esa.int