5.13 AP Images/Planetary Resources.
Chapter 6
6.1 Pete Souza/The White House;
6.2 NG Maps;
6.3 NASA/USGS;
6.4 NASA/JPL-Caltech/Malin Space Science Systems;
6.5 Photo by Mark Thiessen/National Geographic;
6.6 Courtesy of Lockheed Martin;
6.7 ESA/DLR/FU Berlin (G. Neukum).
Chapter 7
7.1 NASA/JSC;
7.2 NASA/JPL-Caltech;
7.3 NASA;
7.4 Bryan Versteeg/Spacehabs.com;
7.5 NASA;
7.6 NASA;
7.7 NASA;
7.8 Robert Zubrin;
7.9 SpaceX;
7.10 SpaceX;
7.11 NASA/JPL;
7.12 (UP), NASA;
7.13 (LO), Arizona State University/Ron Miller;
7.14 Graphic by Robert O’Brien, Center for Space Nuclear Research at DOE’s Idaho National Laboratory;
7.15 NASA;
7.16 JPL/NASA.
Chapter 8
8.1 NASA/JSC;
8.2 Photo by Mark Avino/NASM. Copyright: Smithsonian Institution;
8.3 Used by permission from the Buzz Aldrin Photo Archive.
Backmatter
Rebecca Hale, NGS.