The contract is valued at $255m for the launch and other mission-related costs.
Saudi Arabia is the 21st country to join the Artemis Accords, announced by NASA in October 2020 with eight countries as original signatories.
The image shows a galaxy cluster called SMACS 0723 about 4.5bn light-years away.
The 240-day mission will replicate various stages and scenarios of a manned mission to the Moon which follows phases such as launch, orbit, landing, and return.
Suni Williams and Butch Wilmore will fly the Crew Flight Test (CFT) mission no earlier than late this year.
The xEVAS contract has a potential value of $3.5bn through 2034 with a 10-year base contract plus two option years.
NASA will arrange for the launch of Lunar Pathfinder through its Commercial Lunar Payload Services programme and gain access to communications services from...