Science & Exploration
Andromeda Galaxy seen in visible light
The Andromeda Galaxy is our nearest large galactic neighbour. It contains several hundred billion stars, and is captured here at optical wavelengths. Hot stars shine with blue light, while cooler stars shine yellow.
Andromeda: our nearest large galactic neighbour
Andromeda Galaxy seen in infrared
M31, site of the 'blue light' discovery
Sharpest ever view of the Andromeda Galaxy
