The Gaia satellite has spotted an enormous ‘ghost’ galaxy lurking on the outskirts of the Milky Way
‘Space beacons’ reveal the Milky Way’s very old core
An ancient population of stars has been discovered at the centre of our galaxy
The Gaia satellite has spotted an enormous ‘ghost’ galaxy lurking on the outskirts of the Milky Way
An ancient population of stars has been discovered at the centre of our galaxy