SLS Latest News
Stay up-to-date with the latest content from NASA's Space Launch System.
As part of a Golden Age of exploration and discovery, NASA announced Friday, Feb. 27, the agency is increasing its cadence of…
As part of a Golden Age of exploration and discovery, NASA announced Friday the agency is increasing its cadence of missions under…
Once NASA’s Artemis II SLS (Space Launch System) rocket and Orion spacecraft arrived at the Vehicle Assembly Building (VAB) Feb.…
With rollback of NASA’s Artemis II SLS (Space Launch System) rocket and Orion spacecraft to the Vehicle Assembly Building complete,…
The SLS (Space Launch System) rocket and Orion spacecraft for NASA’s Artemis II mission arrived at the Vehicle Assembly Building from Launch Pad…
Editor’s Note: The launch director gave the “go” for rollback at 9:28 a.m. EST followed by first motion 10 minutes…
NASA is targeting approximately 9 a.m. EST, Wednesday, Feb. 25, to begin rolling the SLS (Space Launch System) rocket and…
Due to weather, NASA now is targeting early Wednesday, Feb. 25, to roll the SLS (Space Launch System) rocket and…
Weather pending, NASA will roll the SLS (Space Launch System) rocket and Orion spacecraft for Artemis II off the launch…
Editor’s note: NASA has updated an earlier version of this blog to provide additional details. NASA is taking steps to…
NASA successfully fueled its SLS (Space Launch System) rocket and demonstrated the launch countdown for Artemis II on Thursday during a wet dress rehearsal at the agency’s Kennedy Space Center in…
Live updates for the Artemis II wet dress rehearsal will be published on this page. Live views of the launch…
NASA continues to press ahead through the Artemis II wet dress rehearsal countdown – a fueling test of the SLS…
The countdown for the Artemis II wet dress rehearsal is underway at NASA’s Kennedy Space Center in Florida. The countdown…
NASA is targeting Thursday, Feb. 19, as the tanking day for the second wet dress rehearsal ahead of the agency’s…
As part of robustly testing the vehicle prior to flight, NASA engineers are reviewing data after a confidence test Feb.…
Jesse Berdis’s dream of becoming a structural engineer began with visions of skyscrapers rising above the Dallas and Oklahoma skyline.…
Water flowing out. Data flowing in. A water system activation at the Thad Cochran Test Stand (B-2) on Jan. 30…
Since concluding a wet dress rehearsal Feb. 3 ahead of Artemis II, technicians have replaced two seals in an area…
NASA conducted a news conference on Tuesday, Feb. 3, to discuss initial findings from the recently completed Artemis II wet…
NASA concluded a wet dress rehearsal for the agency’s Artemis II test flight early Tuesday morning, successfully loading cryogenic propellant…
The Artemis II wet dress rehearsal countdown was terminated at the T-5:15 minute mark due to a liquid hydrogen leak…
NASA teams officially entered the final 10 minutes of today’s Artemis II wet dress rehearsal countdown known as terminal count…
NASA’s Artemis II closeout crew has completed its critical tasks and departed NASA Kennedy’s Launch Complex 39B during the Artemis II wet…
NASA teams completed closing the launch abort system hatch during the Artemis II wet dress rehearsal, simulating final launch day procedures. The…
The Artemis II wet dress rehearsal entered the T-10 minute hold in the simulated countdown at 8:50 p.m. EST. Though…
As part of the Artemis II wet dress rehearsal, NASA teams are performing final preparations and closure of the Orion…
As part of the Artemis II wet dress rehearsal, NASA’s Artemis II closeout crew and pad rescue team are en…
NASA teams have transitioned all cryogenic tanks on the SLS (Space Launch System) rocket to replenish mode during the Artemis II wet…
Following the vent and relief test on the interim cryogenic propulsion stage (ICPS) liquid hydrogen tank, NASA teams have entered…
Fueling of the SLS (Space Launch System) rocket is proceeding on all fronts, following earlier pauses on liquid hydrogen flows.…
NASA teams have completed filling the core stage of the SLS (Space Launch System) rocket with liquid hydrogen and transitioned…
Editor’s note: This blog post was updated at 4:09 p.m. EST on Feb. 2, 2026, to correct the status of…
After teams temporarily resumed fast fill of liquid hydrogen operations into the core stage, initial steps to correct the leak…
Teams have started chilling down the lines used to feed liquid oxygen into the upper stage. Troubleshooting of liquid hydrogen…
Teams have stopped the flow of liquid hydrogen through the tail service mast umbilical interface into the core stage after…
As teams continue to fuel the SLS (Space Launch System) rocket’s core stage with liquid oxygen and liquid hydrogen, teams began propellant loading…
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…
NASA teams have transitioned to fast fill of the SLS (Space Launch System) rocket’s core stage with super-cold liquid hydrogen, chilled…
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…
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…
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 countdown for the Artemis II wet dress rehearsal is underway at NASA’s Kennedy Space Center in Florida. The countdown…
Doug Parkinson’s face lights up as he starts telling his story, how someone from Wisconsin now plays a part in…
Shortly after NASA’s Artemis II SLS (Space Launch System) rocket and Orion spacecraft arrived to Launch Pad 39B at the agency’s Kennedy…
When NASA’s SLS (Space Launch System) rocket launches the agency’s Artemis II mission to the Moon, four CubeSats, or small…
Editor’s Note: The timeframe for a wet dress rehearsal has been updated. At 6:42 p.m. EST on Saturday, Jan. 17,…
The SLS (Space Launch System) rocket and Orion spacecraft that will carry four astronauts around the Moon is rolling to Launch Complex 39B…
Inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida, the agency’s Artemis II Moon rocket stands poised…
NASA’s integrated SLS (Space Launch System) rocket and Orion spacecraft for the Artemis II mission is inching closer to launch…