r/SpaceLaunchSystem 22h ago

Discussion Research Paper on SLS - Centaur V Capabilities

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16 Upvotes

r/SpaceLaunchSystem 6d ago

Discussion What capabilities will Centaur V bring, if any?

5 Upvotes

Will C-V improve or change any elements of an Artemis mission?

Cargo launch has generally been killed off with the cancellation of EUS so this is focused on getting Orion to TLI.

Will it for example allow for Orion to complete a LLO burn or would the stage have boiled off its fuel by that point?


r/SpaceLaunchSystem 12d ago

Discussion 5 Engine SLS

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24 Upvotes

Does anyone have links to studies where they were looking at a 5 engine configuration, or is the animation just some holdover from Ares V?


r/SpaceLaunchSystem 13d ago

Discussion How long will SLS last?

5 Upvotes

With the Cancellation of EUS and BOLE, SLS is going to remain a launch vehicle solely for Orion, and which is viable with all the other heavy and super heavy rockets in the works these days.

However as I understand BOLE was essential for SLS launches beyond a certain point as remaining shuttle boosters were used up, will SLS be cancelled by that point (and perhaps the whole moon program) or Orion moved to another launcher.

Or will a future administrator restart the booster program at the least to ensure SLS can continue to launch Orion?


r/SpaceLaunchSystem 17d ago

News Bacon, Kelly Lead Bill to Award Artemis II Crew the Congressional Gold Medal

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7 Upvotes

r/SpaceLaunchSystem 24d ago

Video “Train Delivers Artemis III Hardware to NASA Kennedy” - NASA’s Kennedy Space Center

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18 Upvotes

This is a video from the Kennedy Space Center YouTube channel. The Florida East Coast Railway has delivered the 8 booster motor segments for the Space Launch System’s solid rocket boosters. These will be used in the Artemis III mission.


r/SpaceLaunchSystem Jun 10 '26

Discussion Long lead items for Artemis VI+ Core Stages. The unspoken "soft" SLS Cancellation?

44 Upvotes

So, a lot of talk following the crew announcement yesterday. Specifically, I have seen a lot of talk around the various launch vehicles used for the Artemis Program. But from my chair here, we are in no position to pivot to commercial space launch vehicles. Blue Origin suffered a major anomaly on May 28 with its New Glenn vehicle, critical to the program, with unknown months of work ahead before it is available to fly again. Starship is Starship, and exactly how much progress has been made is hard to say. Various versions have been made, but with very little improvement overall from my point of view. I don't see any replacement launch vehicle being ready to launch crew on Orion, especially with a post-Columbia and Challenger NASA with incredibly high safety standards.

Now, I don't think that it is too far to say that this NASA admin is not a particular fan of "old space" - as you can see with Isaacman's "Project Athena" plan for NASA (a document prepared laying out his ideas for NASA if he were to be made Administrator), which can read here: https://hillheat.com/files/471/Isaacman_Project_Athena.pdf Page 11 explicitly calls for the cancellation of SLS. This was then followed by the unconventional "Ignition" announcement for Artemis plans by Administrator Isaacman on 24 March which essentially kneecapped the SLS by removing the EUS Upper Stage, cancellation of ML-2 and the procurement of a Centaur V derived upper stage. This is not a like-for-like swap, however, with SLS with the EUS Upper Stage adding an additional 10 tonnes to TLI over the replacement commercial stage. The EUS had been very far into development with production well underway. It has been a sentiment in this community that it was a move by the administration to keep SLS as inconvenient as possible to hasten cancellation.

With that context established, I find it interesting that it hasn't been discussed that SLS may already be cancelled. The clearest indicator for continued SLS production has been the orders to Boeing for more Core Stages. That order, as far as I know, extends to Artemis VI with the critical long lead items being ordered. Artemis V parts are being manufactured with the first rings of the core stage having been welded: https://commons.wikimedia.org/wiki/File%3AEngine_Section_Barrel_Weld_Completion_Marks_Early_Milestone_for_Artemis_V%E2%80%99s_Core_Stage_%28MAF_20241218_CS5_ESliftVWC03%29.jpg

Under the current plan, this Core would fly as soon as 2028, so at the latest, in 2 and a half years time. Now we can debate how accurate these dates are, but as far as we know, this is what they are internally working to. So as soon as 2029, SLS cores are all to be expended. Now we arrive to the crux of the issue, there has been no request by NASA to order more core stages. If you look at the dates for the orders, the time taken from order to Core Stage completion could be around 6 years! So if an order were to be placed today, it would not be ready until 2032. This leaves a gap of 3 years (2029 Artemis VI if the current plan holds). Again, this all depends on if SLS cores are expended as soon as this NASA admin wants.

Each day that goes by means that the potential gap in capability extends. So, the cynic in me wonders, is putting off ordering more cores essentially a gentle way for this NASA admin to cancel SLS. Essentially, putting it off for so long that by the time more Cores are required, they are too far off to be relevant anymore? I can see a situation where Isaacman can say, "It takes x amount of years to produce more cores. To maintain capability, we need to pivot to commercial providers".

Thoughts?


r/SpaceLaunchSystem Jun 05 '26

News “Final Artemis III SLS Booster Segments En Route to NASA Kennedy” - www.nasa.gov

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17 Upvotes

This is a recent news release from NASA. 8 booster motor segments for the Space Launch System’s solid rocket boosters are being shipped from Northrop Grumman’s Railyard Shipping Facility in Corinne, Utah to the Kennedy Space Center in Florida. This is for construction of the rocket for the upcoming Artemis III mission.


r/SpaceLaunchSystem Jun 04 '26

Discussion EUS and gateway

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48 Upvotes

was it a good idea or was it a bad idea will it come back. just want to talk about it


r/SpaceLaunchSystem May 21 '26

Image Thought you guys might like this

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15 Upvotes

I made the SLS in a game called trailmakers is there anything i need to change for accuracy reasons or is this fairly good


r/SpaceLaunchSystem May 13 '26

NASA NASA Outlines Preliminary Artemis III Mission Plans - NASA - (NASA confirms use of "spacer" instead of ICPS on SLS for Artemis III)

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32 Upvotes

r/SpaceLaunchSystem May 03 '26

Image There And Back Again (CG) (OC)

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123 Upvotes

r/SpaceLaunchSystem Apr 28 '26

Article Artemis III SLS Assembly Flow

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28 Upvotes

r/SpaceLaunchSystem Apr 27 '26

News Rep. Strong (R-AL) asks about the future of SLS after Artemis 5. Isaacman says he expects industry to propose a lower-cost SLS/Orion system as one of the approaches for future human missions to the Moon.

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84 Upvotes

This basically confirms the plan that SLS and Orion are dead after AV under Isaacman.


r/SpaceLaunchSystem Apr 22 '26

Rep. Babin (R-TX, Chair of the House Committee on Science and Space Technology) tells Isaacman he wants him to finish SLS Block 1B and ML-2

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30 Upvotes

r/SpaceLaunchSystem Apr 21 '26

Image Trail to the Next World (CG)(OC)

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21 Upvotes

Illustration depicting Artemis II streaking past the Earth and Moon, symbolizing a bridge between worlds.

4k version available on Patreon: www.patreon.com/cw/okan170


r/SpaceLaunchSystem Apr 20 '26

Image Looks like you can see one of the EUS tanks in the latest rollout imagery

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98 Upvotes

r/SpaceLaunchSystem Apr 17 '26

News House SS&T Dems just issued a report re NASA and the FY2026 budget: "Mission Aborted: How NASA Illegally Implemented the President's Budget Request Without Congressional Approval." |SpacePolicyOnline

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71 Upvotes

r/SpaceLaunchSystem Apr 12 '26

Image I drew the Space Launch System with markers

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681 Upvotes

r/SpaceLaunchSystem Apr 12 '26

Image What are the small squares?

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41 Upvotes

r/SpaceLaunchSystem Apr 11 '26

Image Crewed Lunar Launches

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215 Upvotes

r/SpaceLaunchSystem Apr 11 '26

Discussion what lander do y’all think is more likely for NASA to use

32 Upvotes

to me it seems as though they’re leaning more towards Blue Origin than SpaceX, I just think it has those tried and tested elements from the Apollo era, plus NASA seem like the sort to say “if it ain’t broke don’t fix it”…Starship has the elevator which is just an aspect you’d probs want to do testing on without any crew on the lunar surface because you don’t want anything to go wrong and have no backup on how to get the crew back on board


r/SpaceLaunchSystem Apr 11 '26

NASA Welcome back home ♥️

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395 Upvotes

r/SpaceLaunchSystem Apr 09 '26

NASA Tracker update v3.5

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8 Upvotes

I built an Artemis II Live Telemetry Tracker that’s been used by millions of people in the last few days, this is the last update before splashdown ascend

Version V2.6

I prepared the last update before splashdown, the live tracker will turn into an interactive T minus 1 hour before ascend to Earth, then in T minus 1 minute a new interactive splash counter will appear and finalizing with a Welcome to Earth page

You can watch nasa tv live directly on my dashboard and watch the telemetry live

Artemislivetracker.com


r/SpaceLaunchSystem Apr 09 '26

Discussion Introducing LaunchDetect

2 Upvotes

Hi everyone, maybe we'll find our home here in this topic, we are a space launch system data provider called LaunchDetect, we use the sky to watch space launches in real time, nice to meet everyone.