Welcome, Guest. Please login or register.
April 19, 2021, 12:53:30 PM

Login with username, password and session length

Search:     Advanced search
*
Home Help Search Login Register
f13.net  |  f13.net General Forums  |  General Discussion  |  Topic: Space Thread 0 Members and 1 Guest are viewing this topic.
Pages: 1 ... 40 41 [42] Go Down Print
Author Topic: Space Thread  (Read 306639 times)
Count Nerfedalot
Terracotta Army
Posts: 952


Reply #1435 on: December 11, 2020, 08:04:55 PM

Only one of three Raptor engines working while it tried to land.  Needs better brakes.

Yes, I know I'm paranoid, but am I paranoid enough?
calapine
Terracotta Army
Posts: 7168

Solely responsible for the thread on "The Condom Wall."


Reply #1436 on: December 31, 2020, 11:17:00 AM

I wrote a quick overview of what 2021 brings in space (rockets, rovers, probes)

The thread has over 30 images, so instead of copy/paste here is the link:

https://twitter.com/AuerSusan/status/1344655344992210945




Restoration is a perfectly valid school of magic!
Mandella
Terracotta Army
Posts: 1174


Reply #1437 on: December 31, 2020, 07:31:45 PM

Time for end of/beginning of the year space lists?

I enjoyed Tim Dodd's (The Everyday Astronaut) Astro Awards this year. Some surprises in how he ordered things, but I appreciated his rationales. And for those who avoid him due to his characteristic exuberance, he was pretty quiet and mellow for this webcast.

Lots of good video clips of all the neat things that happened spacewise this year too.

https://www.youtube.com/watch?v=h2f0vqgYdLc
calapine
Terracotta Army
Posts: 7168

Solely responsible for the thread on "The Condom Wall."


Reply #1438 on: January 01, 2021, 09:21:15 AM

Time for end of/beginning of the year space lists?

I enjoyed Tim Dodd's (The Everyday Astronaut) Astro Awards this year. Some surprises in how he ordered things, but I appreciated his rationales. And for those who avoid him due to his characteristic exuberance, he was pretty quiet and mellow for this webcast.

Lots of good video clips of all the neat things that happened spacewise this year too.


The video is interesting, but 53 minutes long, buuuut there are timestamps for each of the top 10.
Informative too. CrewDragon being #1 wasn't a suprise, but did not know, for example, that the ISS got a new airlock, made by a private company.

=====

Some outtakes from the Soyuz launch I mentioned upthread.







Source is this time-lapse video (duration 1 minute), which itself is worth watching:

https://www.youtube.com/watch?v=molMEKLwYaw

Restoration is a perfectly valid school of magic!
calapine
Terracotta Army
Posts: 7168

Solely responsible for the thread on "The Condom Wall."


Reply #1439 on: January 01, 2021, 10:13:44 AM

Interesting Soyuz detail:


Soyuz doesn't stand on the launchpad, but is suspended over it. Held in place by the four main support arms. Here seen during pad construction:



Below are triangular guides (yellow-black) that provide extra stability and two additional arms (black) for umbilical lines. (The platform was only present during construction).


Here with a clear view into the flame deflector:




And here with rocket attached. The system is the same for all Soyuz launchpads, but the "house" is a mobile gantry that is a Kourou speciality.
(Main reason for it is to allow vertical integration of satellites, which a lot western sats require.)




The way the primary support arms work is typically Russian fool-proof:
Once the launcher builds thrust the load on the support arms decreases, allowing them to move outwards by the force of counterweights located at their base.

Counterweighs during their installation:



Because of the characteristic opening movement this setup is called the "Tulip".


Here the mobile gantry in action (sorry for the potato quality):


As you can see, rocket is cut of at the neck. The fairing, and inside that the satellite, is missing.
They are added in the next step (vertical integration). On a Baikonur Soyuz the launcher would be rolled out in it's complete configuration.




To close, bonus fun fact:
Ariane 6 will have a similar mobile gantry, only this one is 90 meters tall (the Soyuz is 52m) and weights 8200 tons.



Hope that was interesting smiley
« Last Edit: January 01, 2021, 10:20:35 AM by calapine »

Restoration is a perfectly valid school of magic!
Hammond
Terracotta Army
Posts: 588


Reply #1440 on: February 18, 2021, 11:44:35 AM

So today is the scheduled landing of the Perseverance rover on Mars. Starting at 11 am Pacific standard time is the start of the Landing Coverage with the landing windows around 1 PM. Much like the Curiosity landing they are going with the bonkers sky crane landing with a added twist of much worse terrain. Should be fun.


Nasa's site (the animation is bonkers)

https://mars.nasa.gov/mars2020/

Youtube live feed

https://www.youtube.com/watch?v=w23gC0WhXdI&ab_channel=SPACE%28Official%29
01101010
Terracotta Army
Posts: 11542

You call it an accident. I call it justice.


Reply #1441 on: February 18, 2021, 02:29:43 PM

Welp, so much for doing anything work related for the next half an hour.

edit: thankfully uneventful and successful. Pretty intense in the lead up... way more than I thought.
« Last Edit: February 18, 2021, 03:11:11 PM by 01101010 »

Does any one know where the love of God goes...When the waves turn the minutes to hours? -G. Lightfoot
calapine
Terracotta Army
Posts: 7168

Solely responsible for the thread on "The Condom Wall."


Reply #1442 on: February 18, 2021, 09:11:17 PM

Good image that shows Terrain Relative Navigation system did a good job:



« Last Edit: February 18, 2021, 09:13:14 PM by calapine »

Restoration is a perfectly valid school of magic!
calapine
Terracotta Army
Posts: 7168

Solely responsible for the thread on "The Condom Wall."


Reply #1443 on: February 18, 2021, 09:30:51 PM

Here is a zoomed out version. (Note the two upper craters just being small dots in this image)


Restoration is a perfectly valid school of magic!
Mandella
Terracotta Army
Posts: 1174


Reply #1444 on: February 22, 2021, 01:32:33 PM

Wow. Watching the Monday press conference right now. Look at those landing videos! Cameras everywhere on Perseverance!

Here's to the start of years and years of science and exploration from this rover!

 DRILLING AND MANLINESS DRILLING AND MANLINESS Oh ho ho ho. Reallllly?
pxib
Terracotta Army
Posts: 4661


Reply #1445 on: February 22, 2021, 02:30:35 PM


if at last you do succeed, never try again
Trippy
Administrator
Posts: 22542


Reply #1446 on: February 22, 2021, 02:35:14 PM

Hammond
Terracotta Army
Posts: 588


Reply #1447 on: February 23, 2021, 09:49:09 AM

Mandella
Terracotta Army
Posts: 1174


Reply #1448 on: March 01, 2021, 12:52:44 PM

So a super cool announcement video from "When we say we're going to do something, we do it" Rocket Lab.

Plus apparently when they say they are not going to do something, they do that too, with a side of hat.

 awesome, for real

Gotta love the Peter Beck mic drop at the end.

https://www.youtube.com/watch?v=agqxJw5ISdk
Trippy
Administrator
Posts: 22542


Reply #1449 on: March 01, 2021, 01:12:20 PM

I was waiting for a THIS. IS. SPARTA! in the first part of that video.
Trippy
Administrator
Posts: 22542


Reply #1450 on: March 03, 2021, 05:59:14 PM

SpaceX Starship SN10 test flight:

https://www.youtube.com/watch?v=ODY6JWzS8WU
https://www.spacex.com/vehicles/starship/index.html

It looks pretty cool coming down "sideways". Then after the successful landing and they cut the stream it blew up. Oops.

https://www.cnbc.com/2021/03/03/spacex-lands-starship-sn10-rocket-after-a-high-altitude-flight-test.html
MahrinSkel
Terracotta Army
Posts: 10479

When she crossed over, she was just a ship. But when she came back... she was bullshit!


Reply #1451 on: March 03, 2021, 08:44:35 PM

At some point it would be nice if they stopped with the rapid unscheduled disassembling, but at least it was definitely landed before it blew up.

--Dave

--Jello Biafra: "If evolution is outlawed, only outlaws will evolve."
Sir T
Terracotta Army
Posts: 13651


Reply #1452 on: March 05, 2021, 03:31:22 AM

That went down in the report as "A 100% successful test of the landing system."  why so serious?

Sometimes irony is pretty ironic.
Sir T
Terracotta Army
Posts: 13651


Reply #1453 on: March 05, 2021, 09:45:50 AM

https://www.twitch.tv/nasa

Am watching a spacewalk right now and they are attaching a module to the ISS. So they are screwing bolts in with a spanner. IN SPACE!!!!!!

Actually pretty cool.

Sometimes irony is pretty ironic.
Mandella
Terracotta Army
Posts: 1174


Reply #1454 on: March 06, 2021, 02:25:47 PM

https://www.twitch.tv/nasa

Am watching a spacewalk right now and they are attaching a module to the ISS. So they are screwing bolts in with a spanner. IN SPACE!!!!!!

Actually pretty cool.

Second glove tear in a row though. Got to admire the (heavily trained in) calm of both Glover and Rubins. But there is a team on the ground right now probably working the weekend to change the design and/or procedure a bit I bet.
Morat20
Terracotta Army
Posts: 18289


Reply #1455 on: March 28, 2021, 09:55:19 PM

https://www.twitch.tv/nasa

Am watching a spacewalk right now and they are attaching a module to the ISS. So they are screwing bolts in with a spanner. IN SPACE!!!!!!

Actually pretty cool.
IIRC, something as simply as tightening a bolt in space is a PITA.

You either use a special tool, or make sure you're anchored properly otherwise you just turn yourself around.

My favorite "problems that were a surprise" fact was when NASA went to upgrade the laptops used on the Shuttle back in the 90s. They kept burning out. Turns out the model they were trying out didn't have enough active cooling. Worked just fine on the ground, but the second *heat no longer rose* (because zero g), they burned out. Cooling wasn't sufficient, so heat built up around the processor and cooked them.

So much of basic design just takes *gravity* as a given.
Pages: 1 ... 40 41 [42] Go Up Print 
f13.net  |  f13.net General Forums  |  General Discussion  |  Topic: Space Thread  
Jump to:  

Powered by SMF 1.1.10 | SMF © 2006-2009, Simple Machines LLC