SLS Latest News
Stay up-to-date with the latest content from NASA's Space Launch System.
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…
As booster manager for NASA’s SLS (Space Launch System), Dave Reynolds’ path to NASA is embodied by his childhood poster…
David Beaman is the acting program manager of NASA’s SLS (Space Launch System) at the agency’s Marshall Space Flight Center…
For most, getting into a car is a task that can be done without assistance. Yet for those whose destination…
NASA’s launch and mission teams, along with the Artemis II crew, completed a key test Dec. 20, a countdown demonstration…
The four astronauts set to fly around the Moon during NASA’s Artemis II test flight depart the Neil A. Armstrong…
As 2026 nears, NASA continues moving forward to launching and flying Artemis II, the first crewed mission under the Artemis…
NASA integrated the Artemis II Orion stage adapter with the rest of the SLS (Space Launch System) rocket on Wednesday…
By Jill Dunbar Of the many roads leading to successful Artemis missions, one is paved with high-tech computing chips called…
NASA’s Artemis II SLS (Space Launch System) rocket poised to send four astronauts from Earth on a journey around the…
Media are invited to see NASA’s fully assembled Artemis II SLS (Space Launch System) rocket and Orion spacecraft in mid-October…
NASA has awarded ASCEND Aerospace & Technology of Cape Canaveral, Florida, the Contract for Organizing Spaceflight Mission Operations and Systems…
The final piece of Artemis II flight hardware for the SLS (Space Launch System) rocket departed NASA’s Marshall Space Flight…
Buildup of NASA’s SLS (Space Launch System) rocket for the Artemis III lunar mission has started at the agency’s Kennedy…
Media are invited to NASA’s Marshall Space Flight Center in Huntsville, Alabama, at 2 p.m. CDT Thursday, Aug. 14 to…
As teams get ready for the first crewed Artemis mission, which will take a crew of four around the Moon…
For some people, a passion for space is something that might develop over time, but for Patrick Junen, the desire…
Demonstration Motor-1 (DM-1) is the first full-scale ground test of the evolved five-segment solid rocket motor of NASA’s SLS (Space…
NASA tested RS-25 engine No. 20001 on June 20, at the Fred Haise Test Stand at NASA’s Stennis Space Center…