Cursor-paged feed of authority-ranked Artemis items from articles, NASA media assets, social posts, and structured program data.
NASA is leveraging expertise, capabilities, and partnerships across its centers to make Artemis campaign and deep space exploration safer, more reliable, and efficient. At NASA’s Armstrong Flight Research Center in Edwards, California, contributions include t...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
A full moon is seen shining over NASA’s SLS (Space Launch System) and Orion spacecraft, atop the mobile launcher at Launch Pad 39B at NASA’s Kennedy Space Center in Florida in the early hours of February 1, 2026. The agency concluded a wet dress rehearsal for...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
NASA concluded a wet dress rehearsal for the agency’s Artemis II test flight early Tuesday morning, successfully loading cryogenic propellant into the SLS (Space Launch System) tanks, sending a team out to the launch pad to closeout Orion, and safely draining...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
The Artemis II wet dress rehearsal countdown was terminated at the T-5:15 minute mark due to a liquid hydrogen leak at the interface of the tail service mast umbilical, which had experienced high concentrations of liquid hydrogen earlier in the countdown, as...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
NASA teams officially entered the final 10 minutes of today’s Artemis II wet dress rehearsal countdown known as terminal count after Charlie Blackwell-Thompson, NASA’s Artemis launch director, gave the “go” to proceed. During terminal count, automated systems...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
NASA’s Artemis II closeout crew has completed its critical tasks and departed NASA Kennedy’s Launch Complex 39B during the Artemis II wet dress rehearsal. The departure of the closeout crew marks the transition to the final countdown phase, ensuring the launc...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
NASA teams completed closing the launch abort system hatch during the Artemis II wet dress rehearsal, simulating final launch day procedures. The launch abort system hatch provides access to the Orion crew module through the outer aeroshell of the launch abor...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
The Artemis II wet dress rehearsal entered the T-10 minute hold in the simulated countdown at 8:50 p.m. EST. Though it had been counting down to the opening of a simulated launch window at 9 p.m. EST Monday, Feb. 2, the test will proceed as teams continue to...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
As part of the Artemis II wet dress rehearsal, NASA teams are performing final preparations and closure of the Orion crew module hatch inside the White Room at Launch Pad 39B. This step simulates launch day procedures, ensuring the spacecraft is sealed and re...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
As part of the Artemis II wet dress rehearsal, NASA’s Artemis II closeout crew and pad rescue team are en route to Launch Pad 39B. The closeout crew will head to the White Room inside the crew access arm on the mobile launcher and are responsible for securing...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
NASA teams have transitioned all cryogenic tanks on the SLS (Space Launch System) rocket to replenish mode during the Artemis II wet dress rehearsal. This includes both liquid hydrogen and liquid oxygen tanks for the core stage and the interim cryogenic propu...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
Following the vent and relief test on the interim cryogenic propulsion stage (ICPS) liquid hydrogen tank, NASA teams have entered the topping phase of fueling liquid hydrogen. The vent and relief test verifies that the vent and relief valves operate correctly...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
Fueling of the SLS (Space Launch System) rocket is proceeding on all fronts, following earlier pauses on liquid hydrogen flows. Liquid hydrogen and liquid oxygen in the core stage are in the replenish phase. Liquid oxygen has also reached the replenish stage...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
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...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
NASA teams have completed filling the core stage of the SLS (Space Launch System) rocket with liquid hydrogen and transitioned to topping mode. Topping ensures the tank reaches its full capacity with super-cold liquid hydrogen chilled to minus 423 degrees Fah...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
Editor’s note: This advisory was updated at on Feb. 3, 2026, to reflect a change in the start of the news conference and its participants, as well as removing a placeholder for a crew media gaggle. Following a fueling test of NASA’s SLS (Space Launch Sy...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
Editor’s note: This blog post was updated at 4:09 p.m. EST on Feb. 2, 2026, to correct the status of liquid hydrogen operations at the time of posting. Ground teams have resumed loading liquid hydrogen operations into the core stage of the SLS (Space Launch S...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
After teams temporarily resumed fast fill of liquid hydrogen operations into the core stage, initial steps to correct the leak proved unsuccessful. The leak rate at the interface of the tail service mast umbilical continued to exceed the allowable limits. Liq...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
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.
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
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 develo...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
As teams continue to fuel the SLS (Space Launch System) rocket’s core stage with liquid oxygen and liquid hydrogen, teams began propellant loading operations for the rocket’s interim cryogenic propulsion stage (ICPS), or upper stage. The launch control team i...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
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 the propellant lines ahead of loading super-cold liquid hydrogen, chilled to minus 423 degrees...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
Following successful chilldown of the liquid hydrogen and liquid oxygen lines, teams started slowly filling the SLS (Space Launch System) rocket’s core stage with super-cold liquid hydrogen, chilled to minus 423 degrees Fahrenheit, then with liquid oxygen chi...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
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 propellant lines ahead of loading super-cold liquid hydrogen and liquid oxygen into th...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
