https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/3322584
Artist's conception of a three-stage space vehicle with a SNAP-2 reactor located in the nose of the third stage. The second stage of the vehicle is shown trailing, and the first stage is shown at the lower center. Original public domain image from Flickr
Public DomainFree CCO U.S. Government image for Personal and Business use