- Figure 13.28: Comet Churyumov–Gerasimenko [(ESA/Rosetta/NAVCAM, CC BY-SA IGO 3.0); Nature video]
- Figure 13.31: Sungrazing comet in 2010 [SoHO (ESA & NASA)]
- Figure 13.34: Deep Impact (NASA/JPL-Caltech/UMD)
- Figure 13.42: The Tunguska event airburst simulation (Sandia National Laboratories/Mark Boslough; photo by Randy Montoya)