We gratefully acknowledge for use of public domain images the following:
Mission Control Center, Space Shuttle Discovery STS-120 – NASA
Fermi National Accelerator Laboratory - U.S. federal government, United States Department of Energy
F15 Eagle – Author Tim Felce (Airwolfhound). Licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Karl G. Jansky Very Large Array near Socorro, NM. Author Hajor. Licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.