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re: Godspeed the crew of Artemis II...Re-Entry takes place tonight
Posted on 4/1/26 at 6:11 pm to TheArrogantCorndog
Posted on 4/1/26 at 6:11 pm to TheArrogantCorndog
quote:
Any science people know why this thing keeps slowing down??
I think its drifting to apogee where orbital maneuvers are most efficient.
2
Posted on 4/1/26 at 6:11 pm to Lonnie Utah
quote:
It's a stupid approach and SpaceX fans have been sold a fairy take.
Uncle Lonnie, take your bullshite somewhere else...
K?
Thanks.
Posted on 4/1/26 at 6:12 pm to Lonnie Utah
quote:
It's a stupid approach and SpaceX fans have been sold a fairy take.
SpaceX landed their boosters autonomously. On a fricking autonomous ship. In the middle of a rolling ocean.
And then caught another booster with giant fricking chopsticks.
NASA just chucks theirs into the ocean.
Are you retarded?
This post was edited on 4/1/26 at 6:13 pm
Posted on 4/1/26 at 6:12 pm to TheArrogantCorndog
We saw the launch from St. Augustine Beach!!
It was incredible
It was incredible
Posted on 4/1/26 at 6:12 pm to The Boat
I thought I had the wrong feed. Didn't need to see all the fat asses in the folding chairs.
Posted on 4/1/26 at 6:12 pm to Lsut81
Or how about the fact that NASA just slowly wound down a lot of operations and contracted to SpaceX?
You know SpaceX and Elon are curse words in bars that employees for NASA’s contractors frequent
Hell, NASA is in the middle of converting one of their main pads to fit Starship launches/landings.
Even ignoring the currently unfulfilled promises with Starship, SpaceX has done more to advance the field of rocketry with the Falcon in the past 15 years than Anyone else, NASA included, has done in the past 50.
You know SpaceX and Elon are curse words in bars that employees for NASA’s contractors frequent
Hell, NASA is in the middle of converting one of their main pads to fit Starship launches/landings.
Even ignoring the currently unfulfilled promises with Starship, SpaceX has done more to advance the field of rocketry with the Falcon in the past 15 years than Anyone else, NASA included, has done in the past 50.
This post was edited on 4/1/26 at 6:29 pm
Posted on 4/1/26 at 6:13 pm to TheArrogantCorndog
quote:The initial burn trajectory goes up and comes down, so the speed decreases until it starts to come back down. The perigree raise burn maneuver will stabilize the orbit, then the craft won't be going up and coming down anymore. (This is somewhat simplified.)
Any science people know why this thing keeps slowing down??
Posted on 4/1/26 at 6:13 pm to Lonnie Utah
quote:
It's a stupid approach and SpaceX fans have been sold a fairy take.
It's "tale" by the way. Go ahead and run the numbers of successful launches by SpaceX versus NASA rockets built by Boeing and other partners.
There's a reason SpaceX and Blue Origin are the top dogs now. They don't operate internally with the bloat of government bureaucracy.
Posted on 4/1/26 at 6:13 pm to Boss13
quote:
I think its drifting to apogee where orbital maneuvers are most efficient.
Thanks, that makes sense
Posted on 4/1/26 at 6:13 pm to Pitt Road
quote:
Did I hear the female astronaut demand they turn the AC down because she was uncomfortable?
Just wait till the number 2’s start kicking in.
Posted on 4/1/26 at 6:15 pm to Pitt Road
quote:
Did I hear the female astronaut demand they turn the AC down because she was uncomfortable?
Posted on 4/1/26 at 6:18 pm to TheArrogantCorndog
It’s not in orbit. If they don’t do anything, the craft will come back around the West coast.
The most efficient places to change your orbit are at places called the periapsis and apoapsis, essentially the highest and lowest parts of the orbit. When it hits the apoapsis they will do a burn to lift the periapsis from returning to earth.
Then they’ll turn the engine off and coast to the apoapsis and kinda even out the orbit. Then later they’ll do a burn to cause the apoapsis to come close to the moon.
The most efficient places to change your orbit are at places called the periapsis and apoapsis, essentially the highest and lowest parts of the orbit. When it hits the apoapsis they will do a burn to lift the periapsis from returning to earth.
Then they’ll turn the engine off and coast to the apoapsis and kinda even out the orbit. Then later they’ll do a burn to cause the apoapsis to come close to the moon.
Posted on 4/1/26 at 6:19 pm to Volvagia
Loading Twitter/X Embed...
If tweet fails to load, click here. quote:
This is what engineered power looks like when a nation decides to lead…
After more than 50 years… America just put human flight back on a trajectory to the Moon.
Not theory.
Not simulation.
Not talk.
Hardware… fire… thrust… and precision.
That plume you’re looking at isn’t just flame…
It’s controlled detonation at thousands of degrees… channeled through nozzles engineered to convert chaos into directed force.
Liquid hydrogen and oxygen… ignited and expanded… producing thrust measured in millions of pounds… lifting thousands of tons off the Earth against gravity itself.
Think about that…
A machine built by human hands… overcoming 9.8 m/s² of gravitational pull… carrying life beyond the atmosphere.
That’s not luck.
That’s mathematics… metallurgy… fluid dynamics… and absolute discipline in engineering.
Every valve timed.
Every stage calculated.
Every failure point accounted for.
And it all has to work… in sequence… perfectly.
This is what separates nations that talk… from nations that build.
While others argue…
America designs… tests… ignites… and ascends.
Back to the Moon… not as a memory…
But as a statement.
Posted on 4/1/26 at 6:20 pm to TheArrogantCorndog
WTF? This clown is telling us that "Mission Control will be staffed 24/7 during the mission." No shite, Sherlock.
GOOG GOD! Get Gene Kranz, Charlie Duke and Deke Slayton's ghost back on the damn floor.
GOOG GOD! Get Gene Kranz, Charlie Duke and Deke Slayton's ghost back on the damn floor.
Posted on 4/1/26 at 6:22 pm to Volvagia
Space X has me spoiled. Where is the live feed camera angles NASA?
Posted on 4/1/26 at 6:23 pm to The Pirate King
quote:
If you don't know anything, stay quiet.
I'm currently in titusville. My grandpa was chief engineer of all 5 3rd stages of the v on the moon. 2 of my cousins' other grandpa was lead designer of the crawler-transporter. I strongly suspect i just spent the day with people who know much more about nasa than you could pretend to know, as most were first gen space kids from the late 60s, many working at the cape or recently retired from.
quote:
Ok pal. Keep believing that. Old admins would have pushed back launch as far as possible or even scrubbed this mission completely. He's pushed the teams to work harder, faster, including the program partners.
Yup, this is all possible because of his 4 months.
Posted on 4/1/26 at 6:26 pm to hawgfaninc
Oh there is another cool engineering thing here:
Those engines use hydrogen and oxygen for fuel, which is the ideal in terms of efficiency but brings up a lot of issues that need to be resolved, such has maintaining the cryogenic state of the fuel.
But another one is that it’s TOOOOOO efficient. It generates a lot of superheated gas at high temperatures yes, but it is so high as to surpass our ability to contain it.
The engine bell would completely melt if allowed to.
So what do we do? The engine has two pumps moving oxidizer and fuel into the system. But unlike the oxidizer, it doesn’t pump the hydrogen straight into the chamber.
Instead it gets piped through tubing in the engine bell, both cooling it and expanding it as an evaporated gas. It uses the energy present in that compressed gas to drive a turbine, which is what drives the fuel pumps.
Literally the thermal energy of the engine is what powers the engine.
Those engines use hydrogen and oxygen for fuel, which is the ideal in terms of efficiency but brings up a lot of issues that need to be resolved, such has maintaining the cryogenic state of the fuel.
But another one is that it’s TOOOOOO efficient. It generates a lot of superheated gas at high temperatures yes, but it is so high as to surpass our ability to contain it.
The engine bell would completely melt if allowed to.
So what do we do? The engine has two pumps moving oxidizer and fuel into the system. But unlike the oxidizer, it doesn’t pump the hydrogen straight into the chamber.
Instead it gets piped through tubing in the engine bell, both cooling it and expanding it as an evaporated gas. It uses the energy present in that compressed gas to drive a turbine, which is what drives the fuel pumps.
Literally the thermal energy of the engine is what powers the engine.
Posted on 4/1/26 at 6:26 pm to hawgfaninc
Boris (Fatface's partner) at CNN is currently sucking the Kelly brothers off.
I haven't seen it mentioned anywhere. Will they be sending live video from their approach to the moon? (Yes, I know they "lose" all PUBLIC comms on the far side.) I don't think them bringing back iPhone videos is going to shut up the conspiracy nutcases. I also heard the timing lines up for an earth eclipse. I can't even begin to imagine how awesome that would be to see with naked eyes.
I haven't seen it mentioned anywhere. Will they be sending live video from their approach to the moon? (Yes, I know they "lose" all PUBLIC comms on the far side.) I don't think them bringing back iPhone videos is going to shut up the conspiracy nutcases. I also heard the timing lines up for an earth eclipse. I can't even begin to imagine how awesome that would be to see with naked eyes.
Posted on 4/1/26 at 6:27 pm to MoarKilometers
I think it would be OK if we can keep politics out of this thread 
Posted on 4/1/26 at 6:29 pm to RollTide1987
I thought all the moon stuff was fake?
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