The Milky Way is pulling the Sagittarius dwarf galaxy into long streamsDavid Martinez-Delgado (MPIA) & Gabriel Perez (IAC)By Ken CroswellIt’s poetic justice on a cosmic scale. The same galaxy that the Milky Way is tearing apart may be responsible for a mysterious warp in our galaxy’s disc. Approximately 50 galaxies orbit our own. The two brightest,...