Chapter 25 Images

25.1 A million galaxies

25.2 The Local Group

25.5 The Andromeda Galaxy and its companions

25.11 The central part of the Virgo Cluster of galaxies

25.14 Black hole evidence

25.16 The Coma cluster

25.18 Fraction of galaxies

25.19 The pancake model

25.20 A Hubble Space Telescope image showing clouds of gas and stars that may be about to merge and form galaxies

25.21 The clustering model

25.22 The explosion model

25.23 X-rays from A85

25.24 Arcs in a cluster of galaxies caused by the gravitational lensing of light from a background galaxy

25.26 The Local Supercluster

25.27 Nearby superclusters

25.28 Slice of the universe

25.29 A map of the slice

25.30 Another slice

Bonus Image: Arcs in a cluster

Bonus Image: Milky Way’s Nearest Companion

Bonus Image: M31 and its companions

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