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Starlink 10-9 launch bulletin (Falcon 9 return to flight) (sh.itjust.works)
 

Falcon 9 returns to flight after the upper stage failure on Starlink 9-3. The cause was found to be a crack in a sense line for a pressure sensor attached to the vehicle’s oxygen system.

Starlink Group 10-9 launch out of LC-39A in Florida currently scheduled for 2024-07-27 04:21 UTC, or 2024-07-27 00:21 local time (EDT). Booster 1069-17 to land on Just Read the Instructions.

Webcasts:

Crushing on Miranda Otto no matter what in c/[email protected]
[–] [email protected] 20 points 6 hours ago (4 children)

Is she... reading a sheet of aluminium foil?

Falcon 9's Return To Flight scheduled for 2024-07-27T04:21Z in c/[email protected]
[–] [email protected] 6 points 19 hours ago* (last edited 19 hours ago) (1 children)

Yay! I've been experiencing some "launch withdrawal" symptoms :)

That’s 27 hours from now.

I suppose I'd better get a launch thread up soon!

Interesting failure and fix:

the liquid oxygen leak on the upper stage led to the excessive cooling of engine components, most importantly those associated with delivery of ignition fluid to the engine. As a result, the engine experienced a hard start rather than a controlled burn, which damaged the engine hardware and caused the upper stage to subsequently lose attitude control.

For near term Falcon launches, the failed sense line and sensor on the second stage engine will be removed. The sensor is not used by the flight safety system and can be covered by alternate sensors already present on the engine.

Seems like another case of Elon's favourite, "try very hard to delete the part or process".

Starship Development Thread #57 in c/[email protected]
[–] [email protected] 3 points 19 hours ago* (last edited 19 hours ago)

Starbase activities (2024-07-25):

Other:

Scientists design spacesuit that can turn urine into drinking water in c/space
[–] [email protected] 1 points 20 hours ago

Thanks for sharing. I had not seen that.

Woman swept to sea while swimming at a Japanese beach rescued 37 hours later and 50 miles away in c/upliftingnews
[–] [email protected] 2 points 20 hours ago

The Edmund Fitzgerald has entered the chat.

Woman swept to sea while swimming at a Japanese beach rescued 37 hours later and 50 miles away in c/upliftingnews
[–] [email protected] 2 points 20 hours ago

Wow, that's quite the ordeal. He blew across nearly the entire Pacific!

‘Frog saunas’ could save species from deadly fungal disease, study finds in c/upliftingnews
[–] [email protected] 1 points 20 hours ago* (last edited 20 hours ago)

Is that what frogs say in Finnish? I always find it interesting what onomatopoeia different languages use for animal sounds...

Furries raise $100,000 for Pittsburgh-area rescue dedicated to senior dogs in c/upliftingnews
The amount of sugar consumed by children from soft drinks in the UK halved within a year of the sugar tax being introduced, a study has found. in c/upliftingnews
[–] [email protected] 0 points 20 hours ago* (last edited 20 hours ago) (1 children)

Godwin's Law.

Perhaps, but I feel like a second level comment was too early to invoke it. Also, there's also the common corollary that whoever invokes Goodwin's law definitionally loses the debate...

The amount of sugar consumed by children from soft drinks in the UK halved within a year of the sugar tax being introduced, a study has found. in c/upliftingnews
[–] [email protected] 0 points 20 hours ago* (last edited 20 hours ago) (1 children)

Username checks out.

How about more veggies and legumes?

The amount of sugar consumed by children from soft drinks in the UK halved within a year of the sugar tax being introduced, a study has found. in c/upliftingnews
[–] [email protected] 1 points 20 hours ago

If I were homeless, I'd take beans over Coca Cola any day...

A second critically endangered Chinese pangolin is born in the Prague zoo in less than 2 years in c/upliftingnews
[–] [email protected] 1 points 20 hours ago

I presume they had to tare the bear in order to weigh the baby.

13
[Hyperspace Pirate] Making Liquid Nitrogen with my Homemade Cryocooler (www.youtube.com)
 

Making liquid nitrogen is quite an achievement, especially using salvaged air conditioner and refrigerator parts. A nice application of the Joule-Thomson effect and countercurrent exchange too.

149
What if you tried to print Wikipedia? (www.youtube.com)
submitted 3 days ago by [email protected] to c/xkcd
9 comments fedilink
 

Original static webpage version: https://what-if.xkcd.com/59/

14
[NurdRage] Make Nitric Acid without Sulfuric Acid by Oxalate Precipitation (www.youtube.com)
 

Another useful example of producing a strong acid from a weak acid by using precipitation as the driving force.

6
Cortex #157: Being Better - Relay FM (www.relay.fm)
 

Grey and Myke contemplate the conundrum of always striving to improve in creative work, evaluate technology that significantly impacts their productivity, discuss how they handle failure, and assess the success of a viral Instagram Reel.

13
NASA, Boeing Complete Starliner Engine Testing, Continue Analysis – Commercial Crew Program (blogs.nasa.gov)
submitted 1 week ago by [email protected] to c/nasa
0 comments fedilink
 

Teams completed ground hot fire testing at White Sands and are working to evaluate the test data and inspect the test engine. The ongoing ground analysis is expected to continue throughout the week. Working with a reaction control system thruster built for a future Starliner spacecraft, ground teams fired the engine through similar inflight conditions the spacecraft experienced on the way to the space station. The ground tests also included stress-case firings, and replicated conditions Starliner’s thrusters will experience from undocking to deorbit burn, where the thrusters will fire to slow Starliner’s speed to bring it out of orbit for landing in the southwestern United States.

Integrated ground teams also are preparing for an in-depth Agency Flight Test Readiness Review, which will evaluate data related to the spacecraft’s propulsion system performance before its return to Earth. The date of the agency review has not yet been solidified.

11
WYR: Legs as long as your fingers, or fingers as long as your legs? (sh.itjust.works)
 

I'm honestly not sure which I would choose. Both sound incredibly inconvenient.

13
"Staging Issues" (pbs.twimg.com)
 

Source: Daily Hopper

10
[rykllan] 2024-07-15 Falcon flightworthy boosters overview (pbs.twimg.com)
 

Infographic source: rykllan

https://x.com/_rykllan/status/1812678267826049310

  • B1062, B1061, B1067, and 1063 are the leaders at 22, 21, and 20, and 19 flights, respectively.
  • B1069, B1071, and B1073 are tied for 5th place at 16 flights each.

https://x.com/_rykllan/status/1812678271504388110

144 launches in 2024 is now looking unlikely, given the ongoing investigation into Falcon 9 the upper stage failure on the Starlink 9-3 mission.

57
What happened? (sh.itjust.works)
 

Anyone else see this briefly before the site went down again?

14
Differences between template styles? (sh.itjust.works)
submitted 1 week ago* (last edited 1 week ago) by [email protected] to c/[email protected]
0 comments fedilink
 

Source, One-to-one, One-to-one (keep incorrect)

I can't notice any differences between these. How are they different?

Dotted Small, Dotted Big

These seem similar, but I'm still not entirely sure how to use them.

They seem to overlay the intended pixel colour in the center, and display the current colour of the pixel a couple shades lighter. Is this correct?

What advantage is conferred by altering the current colour of the pixel?

Possible bug: If the intended pixel colour is white, but the current pixel colour is grey, this is lightened to white when the template is applied. There is no way to tell that the pixel is the wrong colour while the template is on.

Is this a bug, or am I not using them correctly?

Thanks!

Edit: After the server maintenance on July 13th, it seems the bug has been fixed.

10
Starlink 9-3 launch bulletin (sh.itjust.works)
submitted 2 weeks ago* (last edited 2 weeks ago) by [email protected] to c/[email protected]
5 comments fedilink
 

Starlink Group 9-3 launch out of SLC-4E in California currently scheduled for 2024-07-12 02:35 UTC, or 2024-07-11 19:35 local time (PDT). Booster 1063-19 to land on Of Course I Still Love You.

Webcasts:

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