WASHINGTON, D.C.- APRIL 17: Space Shuttle Discovery on top of a Boeing 747, escorted by a Northrop T-38 chase plane, en route to Dulles Airport in Washington D.C. on April 17, 2012.
- Image ID: 106069703
- Release Information: Editorial Use Only. Use of this image in advertising or for promotional purposes is prohibited.
- Editorial Credit: Benjamin Doyle / Shutterstock.com
- Copyright: Benjamin Doyle