File:NASA Barge Pegasus, on the Pearl River.jpg

English: The NASA barge Pegasus, left NASA's Stennis Space Center in Bay St. Louis, Mississippi, on Nov. 1, 2016, and traveled on the Pearl River, arriving that night at NASA's Michoud Assembly Facility in New Orleans. Pegasus will carry core stage test and flight articles, the largest parts of NASA's new powerful rocket--the Space Launch System--from Michoud to several NASA centers for testing and for launch on the first SLS mission. SLS will have the payload capacity needed to carry crew and cargo for future exploration missions, including sending the first humans to Mars.