1. Members of the IC 342 / Maffei Group

2. The IC 342 / Maffei Group

3. Hickson Compact Groups

4. Hot X-ray Emitting Gas in a Group of Galaxies
NGC 2300 Group of Galaxies

5. The Virgo Cluster of Galaxies

6. The Coma Cluster of Galaxies

7. The Hercules Cluster of Galaxies

8. 300 of the Brightest X-ray Clusters in the Sky

9. Abell 3528 – A Cluster Merger

10. Gravitational Lensing in Abell 2218

11. Gravitational Lensing by Galaxies

12. Distribution of Galaxies in the Universe

13. Simulations of Galaxies and Gas in the Universe
Each side is 32 Mpc in length
Each side is 25 Mpc in length

14. Superclustering Seen in X-rays
About 6 Mpc across

15. Uniformity on the Very Largest Scales

16. Uniformity on the Very Largest Scales