On 2/3/2026 9:02 PM, Jay Morris wrote:
On 1/29/2026 3:08 AM, Lynn McGuire wrote:
I had no idea that Artemis 2 was getting ready to launch.
Lynn
Delayed a month. Hydrogen leak and I think a hatch problem.
Yup.
https://www.space.com/space-exploration/artemis/nasa-had-3-years-to-fix-fuel-leaks-on-its-artemis-moon-rocket-why-are-they-still-happening
Lynn McGuire <lynnmcguire5@gmail.com> schrieb:
On 2/3/2026 9:02 PM, Jay Morris wrote:
On 1/29/2026 3:08 AM, Lynn McGuire wrote:
I had no idea that Artemis 2 was getting ready to launch.
Lynn
Delayed a month. Hydrogen leak and I think a hatch problem.
Yup.
https://www.space.com/space-exploration/artemis/nasa-had-3-years-to-fix-fuel-leaks-on-its-artemis-moon-rocket-why-are-they-still-happening
Hydrogen is tricky, and liquid hydrogen is cold - colder than the
glass transition temperature of any polymer.
Makes hydrogen seals tricky.
In article <10m0g1m$2neep$1@dont-email.me>,
Lynn McGuire <lynnmcguire5@gmail.com> wrote:
On 2/4/2026 11:22 AM, Thomas Koenig wrote:
Lynn McGuire <lynnmcguire5@gmail.com> schrieb:https://www.space.com/space-exploration/artemis/nasa-had-3-years-to-fix-fuel-leaks-on-its-artemis-moon-rocket-why-are-they-still-happening
On 2/3/2026 9:02 PM, Jay Morris wrote:
On 1/29/2026 3:08 AM, Lynn McGuire wrote:
I had no idea that Artemis 2 was getting ready to launch.
Lynn
Delayed a month. Hydrogen leak and I think a hatch problem.
Yup.
Hydrogen is tricky, and liquid hydrogen is cold - colder than the
glass transition temperature of any polymer.
Makes hydrogen seals tricky.
Just another reason why SpaceX Starship runs on LNG and LOX instead of
LH2 and LOX.
Lynn
I read somewhere today that Artemis was mandated by Congress to use
1970s Space Shuttle tech for some reason.
On 2/4/26 14:17, Ted Nolan <tednolan> wrote:
In article <10m0g1m$2neep$1@dont-email.me>,
Lynn McGuire˙ <lynnmcguire5@gmail.com> wrote:
On 2/4/2026 11:22 AM, Thomas Koenig wrote:
Lynn McGuire <lynnmcguire5@gmail.com> schrieb:https://www.space.com/space-exploration/artemis/nasa-had-3-years-to-
On 2/3/2026 9:02 PM, Jay Morris wrote:
On 1/29/2026 3:08 AM, Lynn McGuire wrote:
I had no idea that Artemis 2 was getting ready to launch.
Lynn
Delayed a month. Hydrogen leak and I think a hatch problem.
Yup.
fix-fuel-leaks-on-its-artemis-moon-rocket-why-are-they-still-happening
Hydrogen is tricky, and liquid hydrogen is cold - colder than the
glass transition temperature of any polymer.
Makes hydrogen seals tricky.
Just another reason why SpaceX Starship runs on LNG and LOX instead of
LH2 and LOX.
Lynn
I read somewhere today that Artemis was mandated by Congress to use
1970s Space Shuttle tech for some reason.
˙˙˙˙I don't know about any mandate but that technology worked. And hopefully
some experts in that effort were still alive and the documentation of
the older
project was useful.
˙˙˙˙bliss˙ - none of the reactionless drives promoted in SF seemed to work...
Bobbie Sellers <blissInSanFrancisco@mouse-potato.com> wrote:
On 2/4/26 14:17, Ted Nolan <tednolan> wrote:
I read somewhere today that Artemis was mandated by Congress to use
1970s Space Shuttle tech for some reason.
I don't know about any mandate but that technology worked. And hopefully
some experts in that effort were still alive and the documentation of
the older project was useful.
Hydrogen fuel was a major pain in the neck during the Shuttle era and so many flights were delayed or scrubbed due to leaks. It's true that we did learn a whole lot about hydrogen seals in the process, though.
--scott
I read somewhere today that Artemis was mandated by Congress to use
1970s Space Shuttle tech for some reason.
We always put the hydrogen tank farm (3,500 psig five foot tall by
eight inch wide tank bombs) in the clear open so any piping failures
went straight to atmosphere.
On 4 Feb 2026 22:17:26 GMT, Ted Nolan <tednolan> wrote:
I read somewhere today that Artemis was mandated by Congress to use
1970s Space Shuttle tech for some reason.
The assumption would have been that reusing existing technology would
save costs and reduce debugging time/pain.
Of course that idea led to its own complications. I recall that
servicing the Space Shuttle Main Engines was a particularly tricky
job, I think because they were not designed for reuse.
The earlier Constellation program was also a Shuttle derived program
designed to keep pork flowing to the right places.
Torbjorn Lindgren <tl@none.invalid> schrieb:
The earlier Constellation program was also a Shuttle derived program
designed to keep pork flowing to the right places.
Not sure I'd like the idea of liquid pork; does that come from
liquid pigs?
Thomas Koenig <tkoenig@netcologne.de> writes:
Torbjorn Lindgren <tl@none.invalid> schrieb:
The earlier Constellation program was also a Shuttle derived program
designed to keep pork flowing to the right places.
Not sure I'd like the idea of liquid pork; does that come from
liquid pigs?
Have you actually seen them make pork sausage? :-)
On Tue, 3 Feb 2026 21:02:33 -0600, Jay Morris wrote:
Delayed a month. Hydrogen leak and I think a hatch problem.
Hydrogen is always going to leak.
On 2/10/26 10:31, Scott Lurndal wrote:
Thomas Koenig <tkoenig@netcologne.de> writes:
Torbjorn Lindgren <tl@none.invalid> schrieb:
The earlier Constellation program was also a Shuttle derived program
designed to keep pork flowing to the right places.
Not sure I'd like the idea of liquid pork; does that come from
liquid pigs?
Have you actually seen them make pork sausage? :-)
Not in person but in videos But the term Pork here refers to
appropriation to finance the construction and related matters of
testing the components, etc.
In the USA Pork Barrel politics refers to the practice of
awarding contracts for whatever to the State, City, County
where the voters for the party or person to be re-elected reside.
Just another form of bribery or Grift. However it does
generally provide jobs therefore income to the residents of
the district.
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