“The National Aeronautics and Space Administration launched the second Saturn/Apollo uprated Saturn I at 9:53 EST, July 5, 1966 from Complex 37, Cape Kennedy, Florida. Primary purpose of the unmanned mission will be a unique engineering study of liquid hydrogen fuel behavior and the launch vehicle’s S-IVB second stage prior to its use as a stage of Saturn V rockets in NASA’s Manned Lunar landing program. The uprated Saturn I will not carry an Apollo spacecraft, instead, the vehicle’s second stage and instrument unit and nose cone will orbit as one body, 92 feet long. It will weigh 58,500 pounds, the heaviest U.S. satellite ever place[d] in orbit.”
The above is taken from the official NASA caption associated with another photo of the launch.
One of my favorite rockets in appearance, and a fantastic photograph of it. Sometimes, black & white is just "it".
The referenced liquid hydrogen fuel’s inflight behavior:
youtu.be/mJzT2bBGVfo
Credit: Mark Gray/YouTube