Cursor-paged feed of authority-ranked Artemis items from articles, NASA media assets, social posts, and structured program data.
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.
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 into the SLS (Space Launch System) rocket for wet dress rehearsal. While teams con...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
The Artemis II wet dress rehearsal countdown continues as teams at NASA’s Kennedy Space Center in Florida began configuring the SLS (Space Launch System) rocket and Orion spacecraft with gaseous nitrogen, an important step to mitigate fire hazards, protect sp...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
NASA continues to press ahead through the countdown for the Artemis II wet dress rehearsal – a fueling test of the SLS (Space Launch System) rocket. Teams monitored all systems throughout the overnight hours during cold temperatures and high winds at the agen...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
The countdown for the Artemis II wet dress rehearsal is underway at NASA’s Kennedy Space Center in Florida. The countdown clock began at 8:13 p.m. EST, or L-48 hours, 40 minutes before the opening of a simulated launch window at 9 pm. Mon, Feb. 2. The test is...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
Four astronauts will soon travel beyond low Earth orbit and fly around the Moon on Artemis II, a mission that will test NASA’s systems and hardware for human exploration of deep space.  Since June 2023, NASA astronauts Reid Wiseman,...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
Off the coast of California, NASA’s Artemis Landing and Recovery team and the Department of War that will work together to retrieve the Artemis II crew and Orion spacecraft following their return to Earth and splashdown in the Pacific Ocean are performing a f...
Why shown: TIER1 nasa primary article; mission mapped to Artemis II; authority-tier ranked source.
