
Image credit: Grumman
Image source: Mike Acs

Image credit: Grumman
Image source: Mike Acs

Image credit: NASA/SAO
Image source: Chandra X-Ray Observatory

Imaged credit: Grumman
Image source: Cradle of Aviation Museum

Image credit: Grumman
Image source: Cradle of Aviation Museum

Image credit: Mark Avino
Image source: National Air & Space Museum

Image credit: Mark Avino
Image source: National Air & Space Museum

Image credit: Fairchild
Image source: Cradle of Aviation Museum

Image credit: United States Air Force
Image source: Mike Acs

AERO JET GENERAL DRAWING OF SNAP 8 35 KW KILOWATT ELECTRICAL GENERATING SYSTEM ON A PLANET MARS FLY BY
Image credit: Aerojet
Image source: National Archives

Image credit: Douglas
Image source: National Archives

Delta’s mission is space research. This 90-foot National Aeronautics and Space Administration rocket is designed for a variety of orbital and space probe missions. All three stages are built by Douglas. The first is a modified Thor booster. Second and third stages (shown separating from first stage) are specially developed by Douglas for Delta.
Important NASA Programs using Delta include lunar probes, weather and navigational satellites, and satellites to explore the radiation belt, solar energy, atmospheric structure and the ionosphere.
Image credit: Douglas
Image source: National Archives