Photos: Delta 4-Heavy with Orion on eve of launch

The mobile platform intended to carry NASA’s Space Launch System will trek to the mega-rocket’s launch pad at the Kennedy Space Center in Florida as soon as Thursday, before heading inside the spaceport’s huge Vehicle Assembly Building for the first time next month.

NASA officials said Tuesday the weekend test-firing of the Space Launch System moon rocket’s core stage was cut short by an out-of-limits parameter in a hydraulic system for gimbaling, or vectoring, one of its engines. NASA Administrator Jim Bridenstine told Spaceflight Now engineers are “feeling pretty good” about the data gathered during the shortened test-firing, and managers may decide to ship the SLS core stage to the Kennedy Space Center for launch preparations without re-attempting the planned eight-minute hot fire.

The Trump administration is proposing $19.1 billion for NASA in its fiscal 2018 budget blueprint, a 0.8 percent decrease from 2017 funding levels, focusing on deep space exploration, both human and robotic, and increased public-private partnerships to lower costs and encourage private sector innovation.