SpaceX and other space news updates

2,228,655 Views | 21025 Replies | Last: 8 hrs ago by TexAgs91
lb3
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TxAg82 said:

Kenneth_2003 said:

That USA chant!!!



I have to assume the majority of those young engineers based out of California are pretty far left. It's good to see them chanting USA.
They aren't hard core leftists. SpaceX doesn't pay insane salaries so their employees, who come from across America, are well aware of the taxes and cost of living in California.
PJYoung
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Tailgate88 said:

I really want to get down there to see one of these launches. We are in CS, guess I need to plan a week vacation around the next one. Do we have any idea when they will be?

No. I would guess a couple of months from now probably.
hph6203
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They do, in fact, have (ex) employees that are smart but incredibly stupid.



Friend of a friend works at Intuitive Machines and is a garden variety leftist. Had a pretty intense leftist perception vs Musk reality debate with him. He constantly asked if I was an engineer, even though the discussion wasn't about engineering specifically, several times during the debate he looked my claims up to try to disprove me and sheepishly had to admit I was correct.

They are everywhere, even at SpaceX.
PJYoung
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Fightin_Aggie
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PJYoung said:



In mechanics, specifically acoustics, a shock wave, shockwave, or shock is a type of propagating disturbance that moves faster than the local speed of sound in the medium. Like an ordinary wave, a shock wave carries energy and can propagate through a medium, but is characterized by an abrupt, nearly discontinuous, change in pressure, temperature, and density of the medium.
For the purpose of comparison, in supersonic flows, additional increased expansion may be achieved through an expansion fan, also known as a PrandtlMeyer expansion fan. The accompanying expansion wave may approach and eventually collide and recombine with the shock wave, creating a process of destructive interference. The sonic boomassociated with the passage of a supersonic aircraft is a type of sound wave produced by constructive interference.
Unlike solitons (another kind of nonlinear wave), the energy and speed of a shock wave alone dissipates relatively quickly with distance. When a shock wave passes through matter, energy is preserved but entropy increases. This change in the matter's properties manifests itself as a decrease in the energy which can be extracted as work, and as a drag force on supersonic objects; shock waves are strongly irreversible processes.

https://en.wikipedia.org/wiki/Shock_wave

Keep seeing shockwaves referenced and wanted some more technical data on them

normaleagle05
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The view inside the aft and the view of the ship from the booster....

will25u
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That are really nice!

Space prawn!
Kenneth_2003
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hph6203 said:

They do, in fact, have (ex) employees that are smart but incredibly stupid.



Friend of a friend works at Intuitive Machines and is a garden variety leftist. Had a pretty intense leftist perception vs Musk reality debate with him. He constantly asked if I was an engineer, even though the discussion wasn't about engineering specifically, several times during the debate he looked my claims up to try to disprove me and sheepishly had to admit I was correct.

They are everywhere, even at SpaceX.


Listen here flapjack tits... USA USA USA chants aren't dog whistle. They actually mean that!

You may go now. No I mean to Guatemala. Go there!

Edit... Lest there be any confusion I'm referring to the author of the linked X post, not the TexAgs poster whom I quoted.
Kenneth_2003
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Good analysis by Scott Manley. He confirmed and shares some suspicious I have.

The flip did not go the correct way, and probably created undesirable slosh. Additionally the white tile above the catch point was a test tile.

nortex97
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I had no idea this was a 'thing' either. I guess it's in Brady.
will25u
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Looks a little to overcorrected there at the end. Probably need to work on that before trying to catch.

lb3
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That landing didn't look very stable. Or maybe they were trying to test hover maneuverability limits? Hard to know.
Kenneth_2003
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1, it was a 2 engine landing burn test.
2, keep in mind your looking at a camera on a bouy in 8ft swells

Edit...
3, even without the ocean sharing kaboom that followed... I'm not ready to strap into that beast!
txags92
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nortex97 said:


I had no idea this was a 'thing' either. I guess it's in Brady.


Looks like a great way to advertise tens of thousands of dollars worth of equipment that is likely to be only lightly secured.
chiphijason
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I think you are looking at the end of the precompited trajectory to a hover rounded that dons not have any active sensors besides gps and no fixed reference points that it can reference. The ocean with 8!foot sweeps is not a uniform surface. If there was a tower there in the immediate area the starship could reference off of I bet the hover would be much more stable.
TriAg2010
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chiphijason said:

I think you are looking at the end of the precompited trajectory to a hover rounded that dons not have any active sensors besides gps and no fixed reference points that it can reference. The ocean with 8!foot sweeps is not a uniform surface. If there was a tower there in the immediate area the starship could reference off of I bet the hover would be much more stable.


It's clearly rolling about its long axis at the end of the hover. You don't need fixed external references to measure roll rate. Pitch, roll, and yaw would be readily apparent from onboard gyroscopes.
torrid
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nortex97 said:


I had no idea this was a 'thing' either. I guess it's in Brady.


I first saw the story about "telescope ranch" and figured it was a tourist thing. I then quickly realized it was a way to view a very dark sky from just about anywhere in the world.
Kenneth_2003
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Am I the only one that has watched several YT commentators following flight 12 and am shocked at the general Negative Nancy attitudes by a bunch of the outsiders? I am of the idea that I (currently) don't give a damn that booster flip and engine relight failed. I really don't care that 2 out of 37 Raptor 3's had in flight issues.

Honest question, how many of the Raptors did full duration burns on the test stand at McGregor? Even the so called "full duration" static fire on the booster can only be about 10 seconds before they run out of cooling water.

Booster flip and relight failure... The booster looks to have flipped on the wrong axis and went the wrong way. Problem? Yes. Fixable? Certainly and probably a pretty easy one since seeing as the booster flipped on the wrong axis, we know SpaceX knows how to flip and fly the booster, so something went quite literally sideways on the first flight of this new booster version.

People crying and moaning about red lines in the joints between heat shield tiles... We have no ide and no way of knowing if that's bad or not. What I didn't see were missing tiles. SpaceX reported ZERO burn throughs on the vehicle.

"It took too long to deploy the Starlink simulators!"

And yes the ship landing was a bit wobbly.

It's NOT the 12th flight. That system was a complete 100% clean sheet redesign over the systems that flew on Flight 11.
techno-ag
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I guess some people just don't like to see American companies succeed, particularly those run by certain individuals.
The left cannot kill the Spirit of Charlie Kirk.
Kenneth_2003
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These were regular SpaceX followers and content creators in the broader space industry. People that Id think know what is going on, the changes that have been made and the challenges still being overcome.

These were people I'd like to think know what the hell they're talking about. I'm deciding they're all "firing a little too far behind top dead center..." If you get that reference
techno-ag
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Kenneth_2003 said:

These were regular SpaceX followers and content creators in the broader space industry. People that Id think know what is going on, the changes that have been made and the challenges still being overcome.

These were people I'd like to think know what the hell they're talking about. I'm deciding they're all "firing a little too far behind top dead center..." If you get that reference

Oh ok. I was going off your comment about "a bunch of the outsiders."
The left cannot kill the Spirit of Charlie Kirk.
Kenneth_2003
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My bad. I guess it would be a given that actual Space X insiders, save Elon and maybe Shotwell, know to keep their mouths shut and fingers off X.
PJYoung
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PJYoung
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Kenneth_2003 said:

My bad. I guess it would be a given that actual Space X insiders, save Elon and maybe Shotwell, know to keep their mouths shut and fingers off X.

Nobody I listened to thought this launch was any kind of failure and everybody said it was the most successful 1st launch of a new version - by far.

They also thought it was great to see SpaceX successfully prove engine out to their sub orbit trajectory and target landing zone.
normaleagle05
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Can you link some of these videos?
Kenneth_2003
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Along with a bunch of the tweets she read through, if I heard correctly included NSF folks.

Maybe they were just trying to be matter of fact observations, but it just came across, to me at last, as pretty negative regarding otherwise fairly ambitious goals
TexAgs91
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I saw that video was out there as well. I didn't watch it though as it looked it like came out of left field. She follows SpaceX and should know better.

From the casual observer, I can see how this all looks like the same flight test flown over and over again and even a regression since they're not catching boosters these days. In reality Starship is becoming more and more advanced and robust with each flight.

The Indian Ocean flight test is more of a unit test/regression test for all the upgrades they've been doing.

At some point though, SpaceX has to start aiming to being a contender by Artemis III. For Artemis III, they don't need their thermal tiles to survive. They don't need to dock to another Starship and refuel, and they don't need to catch the Ship.

They need to rendezvous in orbit with Artemis III and dock.

Perhaps SpaceX sees that with no Artemis III crew selected they still have some time to get the icing on the cake just right.
No, I don't care what CNN or Miss NOW said this time
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PJYoung
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txags92
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TexAgs91 said:

I saw that video was out there as well. I didn't watch it though as it looked it like came out of left field. She follows SpaceX and should know better.

From the casual observer, I can see how this all looks like the same flight test flown over and over again and even a regression since they're not catching boosters these days. In reality Starship is becoming more and more advanced and robust with each flight.

The Indian Ocean flight test is more of a unit test/regression test for all the upgrades they've been doing.

At some point though, SpaceX has to start aiming to being a contender by Artemis III. For Artemis III, they don't need their thermal tiles to survive. They don't need to dock to another Starship and refuel, and they don't need to catch the Ship.

They need to rendezvous in orbit with Artemis III and dock.

Perhaps SpaceX sees that with no Artemis III crew selected they still have some time to get the icing on the cake just right.

The banking turn at the end of Flight 12 was a big deal towards being able to return to Starbase without having to fly in over Monterrey and Brownsville. The success of that maneuver and subsequent hover should not be overlooked. I think they will start moving real fast again once they get one more flight to figure out the booster flip issue and the raptor3 problems. I suspect they are not going to go for a catch until they have the 2nd launch tower complete to avoid having delays if they damage the only launch tower they have right now.
Kenneth_2003
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txags92 said:

TexAgs91 said:

I saw that video was out there as well. I didn't watch it though as it looked it like came out of left field. She follows SpaceX and should know better.

From the casual observer, I can see how this all looks like the same flight test flown over and over again and even a regression since they're not catching boosters these days. In reality Starship is becoming more and more advanced and robust with each flight.

The Indian Ocean flight test is more of a unit test/regression test for all the upgrades they've been doing.

At some point though, SpaceX has to start aiming to being a contender by Artemis III. For Artemis III, they don't need their thermal tiles to survive. They don't need to dock to another Starship and refuel, and they don't need to catch the Ship.

They need to rendezvous in orbit with Artemis III and dock.

Perhaps SpaceX sees that with no Artemis III crew selected they still have some time to get the icing on the cake just right.

The banking turn at the end of Flight 12 was a big deal towards being able to return to Starbase without having to fly in over Monterrey and Brownsville. The success of that maneuver and subsequent hover should not be overlooked. I think they will start moving real fast again once they get one more flight to figure out the booster flip issue and the raptor3 problems. I suspect they are not going to go for a catch until they have the 2nd launch tower complete to avoid having delays if they damage the only launch tower they have right now.

I agree that big 270* turn was HUGE. Yes they do have engines, but those really are for final attitude and landing. Up to then following a deorbit burn StarShip, much like shuttle is a glider. From deorbit burn all the way to tower catch is an energy management problem. That turn was VERY reminiscent of the Heading Alignment Curve or HAC that the Space Shuttle flew to line up on the runway and perfectly manage their energy.

Shuttle would come in from the west, perpendicular to the runway, and intentionally carry extra energy. Then they would perform a 270* turn to the right. They could tighten or loosen the curve to perfectly manage their energy as they lined up on the runway.
TexAgs91
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No, I don't care what CNN or Miss NOW said this time
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NASAg03
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Big announcement from NASA for the next phase of LTV. Lots of work for not much money...

https://www.nasa.gov/news-release/nasa-provides-update-on-moon-base-rovers-landers-missions/

Quote:

NASA has awarded Astrolab $219 million and Lunar Outpost $220 million to build and deliver the first phase of LTVs. Awarded under the Phase 1 High Achievability Mission task orders of the Lunar Terrain Vehicle Services contract, these firm-fixed-price, performance-based milestones will enable NASA to deploy crewed and uncrewed mobility systems to the lunar surface by 2028 through the agency's CLPS (Commercial Lunar Payload Services) initiative. Early surface mobility is a foundational component of the national space policy priority to create an enduring lunar presence.

Blue Origin will deliver the landers using their Mark I lander.
PJYoung
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PJYoung said:



That pirouette at the end was 100% so that the SpaceX team could get a look at the entire Starship before it went to it's watery grave. Such impressive tech.
PJYoung
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Looks even more intentional from here

normaleagle05
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Hard to see it in the raw video, but you can really see the catch simulation in that stabilized bouy cam shot.
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