1. Carnegie Inst. Washington / JHU Applied Physics Lab / NASA
2. FU Berlin (G. Neukum) / DLR / ESA
3. Jesse Allen / NASA Earth Observatory
4. Luca Parmitano / ESA / NASA
5. NASA / AFP / Getty Images
6. NASA / Reuters
7. MODIS
8. NASA
9. F. Comeron / ESO
10. Geoffrey Robinson /Rex USA
11. R. Gendler / Jay GaBany / NASA / ESA
12. Gordan Ugarkovic / JPL-Caltech / NASA / AFP / Getty Images
13. Bill Ingalls / NASA
14. Aaron Kingery / NASA / MSFC / Reuters
15. University of Arizona / JPL-Caltech / NASA
Theo Time
