Tag - Gaia spacecraft

Astronomers Identify Remains of Long-Lost Galaxy Consumed by the Milky Way

The Gaia spacecraft's view of the Milky Way galaxy, with purple marking the remains of the Pontus galaxy. (Image credit: ESA/Gaia/DPAC, CC BY-SA 3.0 IGO)The massive appetite of a GalaxyThe Milky Way galaxy devoured more galaxies in its early days than astronomers assumed.The Gaia spacecraft discovered the remains of an ancient cosmic collision in...