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NASA's Exploration Ground Systems

@NASAGroundSys

We build, launch, and recover rockets and spacecraft for Artemis, humanity’s return to the Moon.

Kennedy Space Center, FLnasa.gov/groundsystemsJoined December 2014

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NASA's Exploration Ground Systems’s posts

NASA's Exploration Ground Systems

@NASAGroundSys

Jun 13

📷 Photo of the Day: Here at

@NASAKennedy

, we share our boundaries with the Merritt Island National Wildlife Refuge. Our facilities co-exist with more than 1,500 different species of plants and wildlife. 🐊 Nearly 5,000 alligators can be found in canals, ponds, and waterways… Show more

An alligator is seen with its head above water, jaws wide open, and a pufferfish mid-air inside.
Photo credit: Bechtel/Tommy Ryon

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Jun 6, 2022

Roll is progressing smoothly.

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First motion of

and

occurred ahead of schedule at 11:16 pm EDT.

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Nov 16, 2022

Liftoff of Artemis I!

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Aug 15, 2022

ARTEMIS I UPDATE: The rollout of

@NASA_SLS

@NASA_Orion

to Launch Pad 39B has now moved up to tomorrow, the evening of Aug. 16, ahead of the targeted Aug. 29 launch. Stay tuned for more information as well as ongoing coverage.

NASA Artemis and 3 others

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Mar 18, 2022

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Sep 20, 2021

These new photos of the

@NASA_SLS

show an unobstructed view of the rocket with the retraction of 10 work platforms for the Umbilical Release and Retract Test (URRT) inside of High Bay 3 in the Vehicle Assembly Building at

@NASAKennedy

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Mar 16, 2022

Behold:

@NASA_SLS

without a single platform in the way. #Artemis

NASA Artemis

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Sep 8, 2022

ARTEMIS I UPDATE: Engineers are making progress repairing the area where a liquid hydrogen leak was detected during the Artemis I launch attempt Sept. 3, and NASA is preserving options for the next launch opportunity as early as Friday, Sept. 23. MORE: go.nasa.gov/3QpfnPT

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Mar 22, 2022

🌅 A sunrise view of the Artemis I

@NASA_SLS

rocket and

@NASA_Orion

spacecraft at Launch Pad 39B at

@NASAKennedy

in Florida on March 21, 2022.

NASA Artemis

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Sep 26, 2022

Artemis I Update: NASA will roll the Artemis I Space Launch System rocket and Orion spacecraft back to the Vehicle Assembly Building on Monday, Sept. 26. First motion is targeted for 11 p.m. EDT. MORE: go.nasa.gov/3LL6m2O

NASA’s Space Launch System (SLS) rocket with the Orion spacecraft aboard atop the mobile launcher at Launch 39B at NASA’s Kennedy Space Center in Florida.
Photo credit: NASA/Sean Cannon

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Dec 11, 2022

The

@NASA_Orion

spacecraft has been secured in the recovery ship well deck. The USS Portland will return to Naval Base San Diego, where Orion will be readied for ground transport back to

@NASAKennedy

. More here: blogs.nasa.gov/artemis/

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Dec 11, 2022

Artemis I recovery update:

@NASA_Orion

is now in the well deck of the USS Portland. Teams with EGS and the DoD continue to make progress to safely secure the spacecraft.

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@NASAGroundSys

Aug 28, 2022

We are #Artemis and WE ARE GOING!

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Jun 29, 2020

Two

@NASA_SLS

solid rocket boosters are readied for mating to the rocket’s two aft skirts on June 16, 2020, inside

@NASAKennedy

’s Rotation, Processing and Surge Facility. Together, the twin boosters provide more than 75 percent of the total SLS thrust at launch. 🚀

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Sep 19, 2022

ARTEMIS I UPDATE:

@NASA

remains on track for an Artemis I cryogenic demonstration test on Wednesday, Sept. 21. Call to stations for the demonstration occurred at approx. 5 p.m. EDT today, Monday, Sept. 19. #Artemis

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Nov 4, 2022

The Crew Access Arm (CAA) of the Mobile Launcher is being retracted and placed into its travel position.

The Crew Access Arm is retracted and in travel position.

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@NASAGroundSys

Sep 21, 2022

All objectives for the Artemis I cryogenic demonstration have been met.

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Nov 16, 2022

We are in our planned hold at T-10 minutes. Currently, the upper stage liquid hydrogen is 78% filled. Core stage has been topped off – both liquid hydrogen and liquid oxygen are 100% filled. The ethernet switch has been replaced and will be verified.

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Nov 16, 2022

All elements polled are 'go’ to proceed with the terminal count. Countdown clock is resuming at T-10 minutes. No constraints to launch.

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Nov 14, 2022

We are now in launch countdown for Artemis I, call to stations happened at 1:24 a.m. ET this morning. Weather is currently 90% favorable for our next launch attempt on Nov. 16 at 1:04 a.m. ET. MORE: go.nasa.gov/3UUfhSV

A panoramic photo shows NASA’s Space Launch System (SLS) rocket with the Orion spacecraft aboard atop the mobile launcher at Launch Pad 39B at NASA’s Kennedy Space Center in Florida.
Photo Credit: NASA/Chad Siwik

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Sep 3, 2022

UPDATE: Engineers continue to troubleshoot the quick disconnect that connects the ground system to the rocket. Meanwhile, core stage liquid oxygen is currently 99% full and into topping.

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Nov 16, 2022

Upper stage liquid hydrogen is now in 'topping'. The Range Safety Officer is testing the Flight Termination System (FTS). The launch team is determining our new launch time.

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Nov 16, 2022

The 'red crew' at

@NASAKennedy

heading out to the rocket on the mobile launcher at Launch Pad 39B.

0:31

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The

rocket and

spacecraft have cleared the Vehicle Assembly Building perimeter.

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Nov 16, 2022

Thank you to our 'red crew' team that has completed their work at the pad. We are now back in replenish for core stage liquid hydrogen. Team is working on resuming flow to the upper stage.

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Jul 15, 2022

Inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida, technicians continue to prepare the Space Launch System rocket and Orion spacecraft for Artemis I. MORE: go.nasa.gov/3ciicnw

NASA Artemis and 3 others

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Nov 15, 2022

The launch countdown clock has now resumed.

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Oct 22, 2021

And with that, we at

@NASA

have completed assembly of a Moon rocket! Through

@NASAArtemis

@NASA_SLS

and

@NASA_Orion

will allow us to live and work on the Moon, paving the way to Mars. WE ARE GOING. 🚀🌕 More: go.nasa.gov/3vCkUti

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Aug 17, 2022

Goodbye, VAB! 👋

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Jun 17, 2022

Who’s ready to return to the Moon?! 🌕 Tomorrow kicks off NASA’s continued Artemis I wet dress rehearsal testing. Stay tuned to this account and nasa.gov/live for ongoing coverage. Get the details: go.nasa.gov/39F5Rsi

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Aug 23, 2022

⏱ARTEMIS I LAUNCH COUNTDOWN: L-6 Days.

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Mar 17, 2022

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Good morning,

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Mar 17, 2022

😮 🤯

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Dec 30, 2022

The

@NASA_Orion

spacecraft, which recently traveled around the Moon on Artemis I, is now back at

@NASAKennedy

. The spacecraft arrived at the Multi-Payload Processing Facility (MPPF) at approximately 4:15 p.m. today.

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Knock, knock.

NASA's Kennedy Space Center and NASA Artemis

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Aug 31, 2022

⏱ARTEMIS I LAUNCH COUNTDOWN: L-3 days.

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Another view of

as they leave the Vehicle Assembly Building tonight. #Artemis

NASA Artemis

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Jun 11, 2021

Engineers with Exploration Ground Systems and

@JacobsConnects

lifted the

@NASA_SLS

rocket core stage for the

@NASAArtemis

I mission in the Vehicle Assembly Building at

@NASAKennedy

. Check out this timelapse from operations.

0:56

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Nov 16, 2022

We have stopped flow of liquid hydrogen to the core stage due to an intermittent leak on the replenish valve. Teams are discussing a plan to send out the 'red crew' to the pad to torque packing nuts at the base of the mobile launcher.

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Aug 30, 2022

ARTEMIS I UPDATE:

@NASA

will conduct another Artemis I launch attempt Saturday, September 3rd, at 2:17 p.m. EDT. #Artemis

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Apr 3, 2022

Teams are proceeding with ops for #Artemis I wet dress rehearsal. There were four lightning strikes within the LC 39B perimeter, there are currently no countdown constraints. Teams will review data at 6 am EDT for a decision to proceed with tanking. More:go.nasa.gov/3KgK872

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Aug 28, 2022

#Artemis I Weather Update: Weather has improved to 80% for the start of the launch window at 8:33 a.m. EDT on Mon., Aug. 29. Primary concerns are cumulus clouds and flying through precipitation.

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Mar 19, 2022

Photos from Thursday's Artemis I wet dress rehearsal roll out by

@JacobsConnects

engineer Benjamin Bair.

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Jun 11, 2021

#Artemis I

@NASA_SLS

rocket core stage lift operations photos in the transfer aisle of the Vehicle Assembly Building at

@NASAKennedy

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Dec 13, 2021

Welcome to the #Artemis era. The Vehicle Assembly Building at

@NASAKennedy

now has a new Artemis logo.

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Nov 8, 2022

A total lunar eclipse glows above

@NASA_SLS

and

@NASA_Orion

at Pad 39B in the pre-dawn hours on Nov. 8, 2022. This "blood moon" will not return to our sky until 2025. 📸: NASA/Sean Cannon

A total lunar eclipse glows above NASA's Space Launch System and NASA’s Orion Spacecraft at Pad 39B in the pre-dawn hours on Nov. 8, 2022. This "blood moon" will not return to our sky until 2025.

📸: NASA/Sean Cannon

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Sep 20

The Artemis II crew has arrived at Launch Pad 39B to practice launch day procedures.

Astronauts for Artemis II arrive at the launch pad in the orange test versions of their Orion crew survival suits.
Photo Credit: (NASA/Matina Douzenis)

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Sep 9, 2022

After disconnecting the ground and rocket-side plates on the interface, called a quick disconnect, for the liquid hydrogen fuel feed line, teams have replaced the seals on the

@NASA_SLS

core stage associated with the liquid hydrogen leak detected. MORE: go.nasa.gov/3qrCa2T

NASA’s Space Launch System (SLS) rocket is seen at Launch Pad 39B Thursday, Sept. 8, 2022, at NASA’s Kennedy Space Center in Florida as teams work to replace the seal on an interface, called the quick disconnect, between the liquid hydrogen fuel feed line on the mobile launcher and the rocket. Photo Credit: NASA/Chad Siwik

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@NASAGroundSys

Jun 28, 2021

Check out this very high-angle photo of

@NASA_SLS

after the launch vehicle stage adapter (LVSA) stacking in High Bay 3 of the Vehicle Assembly Building at

@NASAKennedy

. #Artemis

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Jun 12, 2021

The

@NASA_SLS

#Artemis I core stage has been lowered down onto the mobile launcher in High Bay 3 of the Vehicle Assembly Building at

@NASAKennedy

. Teams are continuing work to secure the core stage to the solid rocket boosters for

@nasaartemis

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@NASAGroundSys

Sep 3, 2022

Liquid hydrogen has resumed with a slow manual fill.

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Nov 16, 2022

We are now in replenish mode on upper stage for both liquid hydrogen and liquid oxygen. We remain in a hold.

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@NASAGroundSys

Jun 7, 2021

Final preparations are underway in the transfer aisle for the lift and mate of the

@NASA_SLS

core stage to the boosters on the mobile launcher in High Bay 3 of the Vehicle Assembly Building at

@NASAKennedy

. #Artemis

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@NASAGroundSys

Mar 17, 2022

The Vehicle Assembly Building High Bay 3 doors are now fully open.

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Nov 16, 2022

Weather is currently at 90% favorable.

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🏖🚀 Beautiful view of

and

at Launch Pad 39B yesterday, Aug. 20, 2022, as seen from the Atlantic Ocean. Photo: NASA/Sean Cannon

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@NASAGroundSys

Nov 15, 2022

🚀 We're getting very close to the launch of #Artemis I! The two-hour window for launch opens at 1:04 a.m. EST Nov. 16. Stay tuned for ongoing coverage starting now.

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Oct 19, 2021

We’re really movin’!!

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Jun 14, 2021

Up Close & Personal: The

@NASA_SLS

#Artemis I core stage on the mobile launcher in High Bay 3 of the Vehicle Assembly Building at

@NASAKennedy

. Weighing more than 188,000 lbs without fuel and standing 212 feet, the core stage is the largest part of the Space Launch System rocket.

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@NASAGroundSys

Nov 18, 2022

Pictured on the left side of this image is the liquid hydrogen (LH2) "flare stack" where vented LH2 is burned off safely, while

@NASA_SLS

and

@NASA_Orion

lifts off from Pad 39B on Nov. 16, 2022 at 1:47 am EST at

@NASAKennedy

Liftoff! NASA’s Space Launch System carrying the Orion spacecraft lifts off the pad at Launch Complex 39B at the agency’s Kennedy Space Center in Florida at 1:47 a.m. EST on Nov. 16, 2022. The first in a series of increasingly complex missions, Artemis I will provide a foundation for human deep space exploration and demonstrate our commitment and capability to extend human presence to the Moon and beyond. The primary goal of Artemis I is to thoroughly test the integrated systems before crewed missions by operating the spacecraft in a deep space environment, testing Orion’s heat shield, and recovering the crew module after reentry, descent, and splashdown.
Photographer: NASA/Kevin Davis and Chris Colem

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@NASAGroundSys

Mar 17, 2022

More incredible views! 😎

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@NASAGroundSys

Apr 28, 2021

Stunning view courtesy of the NASA drone team showing the

@NASA_SLS

rocket core stage now docked at

@NASAKennedy

. 👏

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@NASAGroundSys

Mar 10, 2022

Another view, looking up at

@NASA_SLS

@NASA_Orion

today. Ground Systems teams are working to remove equipment and scaffolding away from the rocket and will continue retracting the platforms until the entire rocket is revealed ahead of the upcoming wet dress rehearsal test.

Jacobs and 3 others

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Nov 18, 2022

Billy Cairns, Chad Garrett, and Trent Annis from

@NASA

's 'red team,' heroes of the Artemis I launch who responded to a hydrogen leak, were thanked & congratulated by Administrator

@SenBillNelson

. During the Apollo 11 launch, a red team also went to the pad to address a LH2 leak.

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@NASAGroundSys

Aug 29, 2022

We are currently in a planned liquid hydrogen engine 'bleed test'.

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Sep 2, 2022

⏱ARTEMIS I LAUNCH COUNTDOWN: L-1 days.

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@NASAGroundSys

Mar 9, 2022

Half of Platform C in High Bay 3 of the Vehicle Assembly Building is now retracted, continuing to reveal more of

@NASA_SLS

@NASA_Orion

NASA Artemis and 2 others

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@NASAGroundSys

Aug 13, 2022

Teams have completed the final flight termination system (FTS) test for Artemis I with

@NASA_SLS

and

@NASA_Orion

in the Vehicle Assembly Building at

@NASAKennedy

. We are ready. We are going. 🚀

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@NASAGroundSys

Aug 29, 2022

The liquid oxygen tank is now 75% filled. Liquid hydrogen is at 48%. Both liquid oxygen and liquid hydrogen are currently in fast fill. Teams are monitoring closely.

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The

rocket &

spacecraft have now cleared the perimeter of the Vehicle Assembly Building.

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@NASAGroundSys

Apr 19, 2021

The Vehicle Assembly Building at

@NASAKennedy

is really looking great. The American flag and NASA logo were recently repainted for

@NASAArtemis

. 🚀

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@NASAGroundSys

Aug 26, 2022

Teams have completed the retraction of the Crew Access Arm (CAA), putting it into launch configuration for #Artemis I. While

@NASA_Orion

is uncrewed on this first mission - the CAA, at the 274-ft level on the mobile launcher, provides entry and emergency egress to the spacecraft.

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@NASAGroundSys

Nov 17, 2022

What a sight! The historic launch of

@NASAArtemis

I saw

@NASA_SLS

and

@NASA_Orion

lift off from Launch Pad 39B at

@NASAKennedy

on Nov. 16, 2022, at 1:47 a.m.

The SLS rocket and Orion spacecraft lift off from Launch Pad 39B at NASA's Kennedy Space Center.
Photo credit: NASA/Sean Cannon

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Jun 14, 2021

Check out this compilation of timelapse videos from inside the Vehicle Assembly Building at

@NASAKennedy

, which tell the story of the

@NASA_SLS

#Artemis I core stage lift and stacking. MORE: go.nasa.gov/3gm56F3

1:35

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@NASAGroundSys

Mar 18, 2022

The morning fog has lifted at Launch Pad 39B, revealing spectacular views of

@NASA_SLS

@NASA_Orion

at the pad for #Artemis I wet dress rehearsal.

NASA's Kennedy Space Center and 2 others

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@NASAGroundSys

Mar 17, 2022

High Bay 3 doors have just started opening.

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Aug 22, 2022

⏱ARTEMIS I LAUNCH COUNTDOWN: L-7 Days.

GIF

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@NASAGroundSys

Aug 25, 2022

Teams have completed closeouts on

@NASA_SLS

boosters and finished work inside

@NASA_Orion

. Next, engineers will close launch abort system hatch and retract the crew access arm. Weather is currently 70% favorable for launch on Aug. 29. Read more: go.nasa.gov/3pIDK03

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@NASAGroundSys

Sep 13, 2022

The

@NASA

Artemis I flight test around the Moon will launch no earlier than Sept. 27, with a backup opportunity of Oct. 2 under review. MORE: go.nasa.gov/3d6nKCm

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May 16

✨ Four astronauts will venture around the Moon on #Artemis II, the first crewed mission on

@NASA

's path to establishing a long-term presence at the Moon for science and exploration. Download this poster and more here: nasa.gov/specials/artem

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@NASAGroundSys

Nov 16, 2022

The 'red crew' team has successfully remedied the leak, and it has not recurred. Bad ethernet switch is being replaced now.

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@NASAGroundSys

Sep 3, 2022

Teams have stopped flowing liquid hydrogen into the

@NASA_SLS

rocket, as a leak has been detected in the engine cavity. Teams are troubleshooting by warming up the area. Standby for updates.

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@NASAGroundSys

Jun 25, 2021

Take a closer look at the NASA worm logo on one of the twin

@NASA_SLS

boosters in High Bay 3 of the Vehicle Assembly Building at

@NASAKennedy

, where the rocket for

@NASAArtemis

I is really coming together!

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@NASAGroundSys

Jun 10, 2021

An overhead view shows the fully stacked twin solid rocket boosters for the

@NASA_SLS

rocket on top of the mobile launcher inside High Bay 3 of the Vehicle Assembly Building at

@NASAKennedy

in Florida on June 9, 2021.

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@NASAGroundSys

Jun 6, 2022

And we have first motion!

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#ARTEMIS I UPDATE: ⚡

spacecraft and

core stage are powered up 🚀 Final core stage & engine preps complete ☁ 60%-80% 'go' for weather during 2-hour launch window

Nighttime photo of NASA's Space Launch System rocket and Orion spacecraft on the agency's mobile launcher at Launch Pad 39B, Kennedy Space Center.
Photo credit: NASA/Madison Tuttle

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@NASAGroundSys

Dec 11, 2022

Teams at

@NASA_Johnson

Mission Control Center have handed the

@NASA_Orion

spacecraft over to the Exploration Ground Systems team to proceed with recovery efforts for the spacecraft.

0:34

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@NASAGroundSys

Mar 10, 2022

Half of

@NASA_SLS

is now revealed, with the recent retraction of Platform D in High Bay 3.

NASA Artemis and NASA's Kennedy Space Center

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Around 7:30am EDT

arrived atop Pad 39B after a nearly 10-hour journey from the Vehicle Assembly Building. Teams will configure systems at the pad for launch, targeted for no earlier than Aug. 29 at 8:33 a.m. (2 hour window). MORE: go.nasa.gov/3bXLO9Z

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@NASAGroundSys

Sep 3, 2022

Teams have completed pressurization of the line and restarted flow of liquid hydrogen to the tank.

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@NASAGroundSys

Jan 25

Snoopy is home! Launch director Charlie Blackwell-Thompson delivers #AstronautSnoopy to Peanuts senior vice president Melissa Menta following the conclusion of the #Artemis I mission to the Moon. Snoopy flew aboard

@NASA_Orion

as the zero-gravity indicator.

Snoopy is officially handed over to Melissa Menta, senior vice president with Peanuts Worldwide LLC, inside Launch Control Center Firing Room 1 at NASA’s Kennedy Space Center in Florida on Jan. 18, 2023. Snoopy served as the zero-gravity indicator during the Artemis I mission. Snoopy was secured inside Orion during the mission, a journey beyond the Moon and back to prepare for crewed missions to the Moon. Artemis I launched atop the Space Launch System rocket on Nov. 16, 2022 from Kennedy’s Launch Complex 39B. Orion returned to Earth for a splashdown in the Pacific Ocean on Dec. 11, 2022 after traveling more than 1.4 million miles. NASA has held an association with Snoopy since the Apollo Era – the character has contributed to the excitement for NASA human spaceflight missions, helping inspire generations to dream big, and is a symbol of NASA’s safety culture and mission success.
Photographer: NASA/Kim Shiflett

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@NASAGroundSys

Aug 1, 2022

Take a ride on the Vehicle Assembly Building High Bay 3 elevator, and enjoy a stunning view of

@NASA_SLS

and

@NASA_Orion

, the rocket and spacecraft that will kick off humanity's return to the Moon with Artemis I.

0:52

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NASA's Exploration Ground Systems

@NASAGroundSys

Jul 28, 2020

Check out these beautiful aerial photos of the Artemis I

@NASA_SLS

booster segments arriving at

@NASAKennedy

last month!

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NASA's Exploration Ground Systems

The

Moon rocket &

spacecraft will roll out of the Vehicle Assembly Building for the first time tomorrow, March 17, for wet dress rehearsal at Pad 39B. Platforms around the rocket have almost all been retracted and the crawler is in place under the vehicle.

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NASA's Exploration Ground Systems

@NASAGroundSys

Apr 20, 2021

Crawler transporter-2 and mobile launch platform 1 with concrete ballast completing the crawlerway conditioning recently. 25.5 million pounds were applied to the crawlerway to ready it for the massive weight of the

@NASA_SLS

and

@NASA_Orion

stack for Artemis I.

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NASA's Exploration Ground Systems

@NASAGroundSys

Jul 6, 2021

The

@NASA_SLS

Interim Cryogenic Propulsion Stage (ICPS) has been stacked. It joined the launch vehicle stage adapter, core stage, and boosters on the mobile launcher in High Bay 3 of the Vehicle Assembly Building at

@NASAKennedy

for the upcoming launch of

@NASAArtemis

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NASA's Exploration Ground Systems

@NASAGroundSys

Feb 7, 2022

Ten levels of work platforms, a total of 20 platform halves, surround the

@NASA_SLS

rocket and

@NASA_Orion

spacecraft in High Bay 3, providing access for ongoing testing and processing operations before the vehicle is transported to Launch Pad 39B. More: go.nasa.gov/3ovjui6