Orbital platforms/Space Transportation Systems - Wikiversity
Magellan spacecraft hi-res stock photography and images - Alamy
File:Delta IV Medium 4.2+ (with GOES-N) on launch pad.jpg - Wikipedia
File:Second stage of a Delta IV Heavy rocket.jpg - Wikimedia Commons
Uncooperative Weather scrubs Delta IV Heavy Launch after extended Countdown – Spaceflight101
Delta IV - Wikipedia
LAUNCH COMPLEX 37 (DELTA IV) FACT SHEET
File:The 348th Delta rocket on Launch Pad 37B.jpg - Wikimedia Commons
rocket - KATS
Comparison of orbital launch systems - Wikipedia