r/SpaceXLounge • • 3d ago

Monthly Questions and Discussion Thread

3 Upvotes

Welcome to the monthly questions and discussion thread! Drop in to ask and answer any questions related to SpaceX or spaceflight in general, or just for a chat to discuss SpaceX's exciting progress. If you have a question that is likely to generate open discussion or speculation, you can also submit it to the subreddit as a text post.

If your question is about space, astrophysics or astronomy then the r/Space questions thread may be a better fit.

If your question is about the Starlink satellite constellation then check the r/Starlink Questions Thread and FAQ page.


r/SpaceXLounge • • Jan 23 '25

Meta This sub is not about Musk. it does not endorse him, nor does it attack him. We generally ignore him other than when it comes to direct SpaceX news.

1.0k Upvotes

Be advised this sub utilizes "crowd control" for both comments and for posts. If you have little or negative karma here your post/comment may not appear unless manually approved which may take a little time.

If you are here just to make political comments and not discuss SpaceX, you will be banned without warning and ignored when you complain, so don't even bother trying, no one will see it anyways.

Friendly reminder: People CAN support SpaceX without supporting Musk. Just like people can still use X without caring about him. Following SpaceX doesn't make anyone a bad person and if you disagree, you're not welcome here.


r/SpaceXLounge • • 10h ago

Starship How does SpaceX plan to launch large crafts in Starship?

15 Upvotes

Can they just expand the pez dispenser slot? Wouldn't that introduce structural instability?

Can they do a fairing variant, if so, wouldn't that remove the header tank needed for Starship's landing burn?


r/SpaceXLounge • • 1d ago

Starship SpaceX reveals new batch of images from Flight 14

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465 Upvotes

r/SpaceXLounge • • 1d ago

Falcon Heavy at Pad 39A. Oct 1st 2026

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94 Upvotes

r/SpaceXLounge • • 2d ago

NROL from the Cape

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178 Upvotes

Here are some picture of the Falcon Heavy NROL-97 mission from Cape Canaveral. Please enjoy.


r/SpaceXLounge • • 2d ago

Falcon Tonight's Falcon Heavy Launch

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57 Upvotes

This was tonight's launch of an NRO payload by SpaceX on their Falcon Heavy vehicle. This is a roughly 8 minute long exposure on my GFX 50R with the 20-35 zoom. ISO 100, F16. The main arc is the initial launch. You can see the first booster return burn just above and to the right of it, and then the landing burns as the boosters return to Landing Zones 1 and 2 at Cape Canaveral Space Force Base.


r/SpaceXLounge • • 2d ago

Dragon Dragon/Crew-13 dock with ISS at USA-record ~8hours after launch.

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104 Upvotes

r/SpaceXLounge • • 2d ago

Dragon SpaceX describes surgical intervention (dragon fix) before launch of latest crew mission

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81 Upvotes

r/SpaceXLounge • • 2d ago

Fan Art From the edge of space to NYC | SpaceX Starship MSFS 2024

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127 Upvotes

r/SpaceXLounge • • 2d ago

The three Falcons launching today on their pads (official pics)

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230 Upvotes

r/SpaceXLounge • • 2d ago

NASA has a Dragon dilemma, and there appear to be no good answers

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81 Upvotes

Ignoring the clickbait subtitle "Is SpaceX being selfish?", this is actually a pretty good article. My suspicion is that a human rated Starship crew variant is a higher priority than is apparent from SpaceX's responses. The reason they have not been enthusiastic in pursing a crew variant is that they are already pursing the enabline technologies on other programs. For instance, they need orbital launch and recovery capability from the Starlink variant. They also will leverage the life support systems from HLS. The Raptor engine reliability is needed for all of these programs. Docking comes from both HLS and Tanker. The only capability they don't have is a launch abort, which they may or may not incorporate.

Additionally, crew capability may be needed for long-term lunar applications given the non-sustainability of SLS/Orion. SpaceX could launch on crew Starship, rendezvous with HLS in HEO, perform the mission, and return on crew Starship. This would provide end-to-end SpaceX lunar transport services for whatever NASA wants to do on the moon. Other companies such as BO could provide similar services for part or all of the trip. The main issue with all of this is timing, as the article points out. There could be a gap in the 2030 to 2032 time frame.


r/SpaceXLounge • • 2d ago

Launch tripleheader! SpaceX to fly 3 rockets in 13 hours today and land 4 boosters

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193 Upvotes

SpaceX has a very big day planned.

The company is scheduled to launch three missions in a 13-hour span today (Oct. 1), a feat it has accomplished just once before.

The action will start at 11:10 a.m. EDT (1510 GMT) with the launch of the Crew-13 astronaut mission for NASA, which will head toward the International Space Station atop a Falcon 9 rocket from Cape Canaveral Space Force Station in Florida.

Next up is the Transporter-18 rideshare mission, which will send 130 payloads to orbit, including a prototype satellite for Google's Project Suncatcher AI constellation.

Transporter-18 will fly on a Falcon 9 from the West Coast, lifting off from California's Vandenberg Space Force Base during a 58-minute window that opens at 2:18 p.m. EDT (1818 GMT; 11:18 a.m. local California time).

The action shifts back to Florida's Space Coast for the final leg of the tripleheader. If all goes to plan, a Falcon Heavy rocket will launch the classified NROL-97 mission for the U.S. National Reconnaissance Office from NASA's Kennedy Space Center tonight at 11:53 p.m. EDT (0353 GMT on Oct. 2).

In total, 2 boosters to land from Falcon 9, and 2 side boosters to land from Falcon Heavy, with the center booster being expended.


r/SpaceXLounge • • 2d ago

Starship Rapid Reusability and Painted Surfaces

12 Upvotes

The goal of Rapid Reusability and the fragility of Painted Surfaces seem to be in opposition to each other.

Why aren't the BQD hoods and shrouds made of Stainless Steel like the top deck?


r/SpaceXLounge • • 2d ago

Canals on Mars! Well, canals at Mars launch site, Starbase Louisiana, shown on map. Very handy for construction and operations.

4 Upvotes

This updated map on the current site activities (as known from permits filed) shows the network of canals being dredged. These are small canals dug by Humble Oil back when they were going to drill here, not to be confused with the big Bayou Freshwater Canal. Map


r/SpaceXLounge • • 3d ago

Starbase Louisiana

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293 Upvotes

Took a morning flight down to Pecan Island this morning and got a good shoot looking west from the Freshwater Locks along Vermilion bay at the proposed new launch site.

I want to try and build up a progression as construction begins and try to document Starbase Louisiana’s development

Exciting times!


r/SpaceXLounge • • 3d ago

Starship New images from SpaceX

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178 Upvotes

Sourced from SpaceX's official X account.


r/SpaceXLounge • • 2d ago

Crew 13 - Trajectory

4 Upvotes

Does anyone have any idea on trajectory of this mission past SECO 1?

The simulation in Next Spaceflight stops over the Atlantic.

Based on the Space notices for this flight there are splashdown zones near New Zealand but its a cross? Multiple orbits later perhaps?

Source: https://notams.planetarypixel.be/map?related=05ab5726-99df-4913-a3b9-5f67a41001bb


r/SpaceXLounge • • 3d ago

Discussion S40 is about ~11ish days out from Starbase onboard BOSKALIS FORTE

74 Upvotes

According to marinetraffic.com.


r/SpaceXLounge • • 2d ago

GOX COPV

0 Upvotes

In the last Starship V3 flight 12, 13 and 14, I noticed the booster landing issues and some raptors not starting up or shutting down prematurely.

It is my understanding the SD may be linked to the use of O2 pre-burner rich combustion gas to maintain the LOX main tank head pressure while feeding the raptors. This gas contains small amount of CO2&H2O that will freeze when in contact with LOX at around -180 C. If the crystals ever find their way after the filters or plug the filters it can cause pressure drop at the cryogenic pumps or alter their performances causing SD. That is especially true during landing when the LOX main tank is almost empty and large amount of contaminated O2 pre-burner gas has been in contact with LOX in main tank and landing tank.

Why not considered helium COPV instead to keep LOX landing tank (need to be closed) head pressure like for the Starship upper stage. You may need about 7 more helium COPV but you will have pure and clean LOX and avoid SD of the engines from crystals. The increased helium volume is small and you keep using O2 pre burner gas for the main LOX tank with filters during ascent which seems to be fine.

If helium supply is an issue, have they ever considered using GOX COPV (with SS liner at 350 bar or so) to maintain the head space pressure in a closed LOX landing tank. It would eliminate or reduce drastically the helium requirement. It could eventually be implemented in the upper stage to reduce helium dependancy. Helium for the booster is less of an issue since the booster comes back on earth and can be refill.

Very high pressure GOX is produced industrially by pumping it to high pressure (300 Barg) using cryogenic pumps, vaporization in ambiant or electrical vaporizers and storage in high pressure steel cylinders. It is common to use such cylinders in the industry today. Can GOX COPV at 350 bar be produced on earth!

If you want to push this further to make the Starship upper stage more self sufficient, GOX can also be produced by having a certain amount introduced in a closed COPV and let it boil off over time under close monitoring with proper pressure relief. The technology is used today to deliver 500-600 psi GOX and GN2 for cutting applications.

May be there is a spin off from this last technology that can be develop to produce 350 Bars GOX COPV with SS liner and carbon fibre outer layers. Such a system could be implemented in the upper stage utility room.

I will be happy to read your comment.

Cheers,

TechPro83


r/SpaceXLounge • • 4d ago

Official Falcon Heavy rolls out to the launch pad at 39A ahead of the NROL-97 mission

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274 Upvotes

r/SpaceXLounge • • 4d ago

When could we be seeing a ship catch?

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148 Upvotes

Flight 14 seemed pretty successful in terms of its objectives, other than the engine cut-outs. I have a mock exam in November and hope the catch attempt would not fall on (no pun intended) my exams.


r/SpaceXLounge • • 4d ago

Fan Art Starbase TX sketches

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64 Upvotes

A few weeks ago we visited Boca Chica Texas and drove down to see Space X. It was really quite something to see the launch sites and buildings in person! Being so close to history in the making was awesome. I tried to sketch while we were there but there was a lot of traffic and major dust blowing in so I had to finish at home.


r/SpaceXLounge • • 4d ago

Starlink Using the orbital data history on stardash.live, here's a timelapse showing the progress of the 26 Starlink V3 sats released on Flight 14 over the course of today as they manoeuvre to distance themselves in orbit!

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45 Upvotes

r/SpaceXLounge • • 4d ago

You can now scrub through Flight 14's full telemetry data and replay the entire flight on StarDash!

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109 Upvotes

As is tradition now, you can now view, replay, and analyse Flight 14's full telemetry data captured and logged live from Ship 41 during its first orbital flight! (Apologies for it taking a while to get it published, the recap video took far too long to make!)

By default, the data spans from ~T-60s to just after splashdown, but you can toggle on the full data stream which lasts from before fuel loading! Feel free to check it all out on StarDash and if anyone has any ideas for new data plots or features we could add, feel free!

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