Teams have started chilling down the lines used to feed liquid oxygen into the upper stage. Troubleshooting of liquid hydrogen loading into the core stage continues.
Teams have stopped the flow of liquid hydrogen through the tail service mast umbilical interface into the core stage after leak concentrations exceeded allowable limits. Stopping the flow allows engineers to perform troubleshooting procedures that were developed after Artemis I. Liquid oxygen continues to flow into the core stage, and liquid hydrogen continues to [...]
The Moon is seen shining next to the SLS (Space Launch System) and Orion spacecraft, atop the mobile launcher on January 28, 2026, at Launch Pad 39B at NASA’s Kennedy Space Center in Florida.NASA/Sam Lott As teams continue to fuel the SLS (Space Launch System) rocket’s core stage with liquid oxygen and liquid hydrogen, teams began propellant loading [...]
The Moon is seen shining over the SLS (Space Launch System) and Orion spacecraft, atop the mobile launcher on January 28, 2026, at Launch Pad 39B at NASA’s Kennedy Space Center in Florida.NASA/Sam Lott Teams began chilling down the liquid hydrogen lines for the interim cryogenic propulsion stage of NASA’s SLS (Space Launch System) rocket. This critical step cools [...]
NASA’s crawler-transporter 2 carrying the agency’s Artemis II SLS (Space Launch System) rocket and Orion spacecraft, secured to the mobile launcher, begins the 4.2-mile journey toward Launch Complex 39B at NASA’s Kennedy Space Center in Florida on Saturday, Jan. 17, 2026. NASA/Ben Smegelsky Following successful chilldown of the liquid hydrogen and liquid oxygen lines, teams started slowly filling the SLS (Space Launch [...]
NASA/Brandon Hancock NASA’s Orion spacecraft, which will carry the Artemis II crew around the Moon, sits at the launch pad on Jan. 17, 2026, after rollout. It rests atop the SLS (Space Launch System) rocket. Orion can provide living space on missions for four astronauts for up to 21 days without docking to another spacecraft. Advances [...]
NASA’s Artemis II SLS (Space Launch System) rocket with the Orion spacecraft atop a mobile launcher is seen at Launch Complex 39B, Thursday, Jan. 29, 2026, at NASA’s Kennedy Space Center in Florida.NASA/Jim Ross Teams have started chilling down the liquid hydrogen (LH2) and liquid oxygen (LOX) lines for the SLS (Space Launch System) rocket’s core stage. This critical step cools the [...]
The Moon is seen shining over the SLS (Space Launch System) and Orion spacecraft, on top of the mobile launcher on Feb. 1, 2026. The rocket is currently at Launch Pad 39B at NASA’s Kennedy Space Center in Florida, as teams are preparing for a wet dress rehearsal to practice timelines and procedures for the [...]
NASA’s Artemis II SLS (Space Launch System) rocket with the Orion spacecraft atop a mobile launcher is seen at Launch Complex 39B, Thursday, Jan. 29, 2026, at NASA’s Kennedy Space Center in Florida. NASA/Jim Ross At approximately 11:25 a.m. EST, the Artemis launch director, in coordination with the mission management team chair, gave the “go” to begin loading cryogenic liquid propellant [...]
The Sun rises as NASA’s Artemis II SLS (Space Launch System) rocket and Orion spacecraft stand vertical at Launch Complex 39B at NASA’s Kennedy Space Center in Florida on Wednesday, Jan. 28, 2026.NASA/Cory S Huston The Artemis II wet dress rehearsal countdown continues as teams at NASA’s Kennedy Space Center in Florida began configuring the SLS (Space Launch [...]
