Astronomers lock horns over mystery object G2 Does Milky Way hide a portal to the distant Universe? Telescopic assassin targets supernovae Most detailed images ever of Andromeda show its chaotic past If 2014 was good, wait till you see what 2015 offers Astronomers make SMASHing discovery about size of our galactic neighbours Record-breaking outburst detected from Milky Way's black hole Huge explosion speeding away from Milky Way's core Mystery object at the centre of our galaxy may be larger than thought Controversy over mystery object orbiting supermassive black hole Astronomers map 219 million stars in the Milky Way Dark matter could explain missing satellite galaxies Milky Way Galaxy gets cut down to size Nuggets of star birth: open clusters Living on the edge Astronomers make detailed 3D map of dust in the Milky Way The Trifid and the Lagoon 100 million planets in the Milky Way could harbour complex life Planck takes magnetic fingerprint of the Milky Way A galaxy forged in the furnace Billion-star surveyor comes into focus Astronomers probe riddle of runaway stars X-ray vision at the centre of our galaxy Astronomers find Milky Way's missing arms