Source: ESA/Hubble Photo Release heic1112
Wide field image of the Andromeda galaxy.
Image credits: ESA/Hubble & Digitized Sky Survey 2.
Acknowledgment: Davide De Martin (ESA/Hubble).
The Andromeda Galaxy is revealed in unprecedented detail in four archive observations from the NASA/ESA Hubble Space Telescope. They show stars and structure in the galaxy’s disc, the halo of stars that surrounds it, and a stream of stars left by a companion galaxy as it was torn apart and pulled in by the galaxy’s gravitational forces.(read more)