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Author Topic: Space Thread  (Read 350728 times)
Trippy
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Reply #1400 on: May 27, 2020, 11:35:33 AM

Weather is 50/50 for launch currrently. Scheduled for 4:30 PM Eastern Time.
Sky
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Reply #1401 on: May 27, 2020, 11:59:34 AM

Watching the suit up feed like


Mandella
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Reply #1402 on: May 27, 2020, 12:55:08 PM

Heh. I wasn't planning on watching the whole four hour thing, but here I am.

And I loved how Bob(?) just got in and sat down in the capsule ahead of schedule.
Mandella
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Reply #1403 on: May 27, 2020, 03:30:26 PM

Annnd the expected scrub due to weather.

Try again Saturday 3:22 EDT.
Trippy
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Reply #1404 on: May 27, 2020, 03:36:57 PM

So close, just another 10 minutes might have been enough.
Trippy
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Reply #1405 on: May 30, 2020, 01:58:50 PM

Teleku
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https://i.imgur.com/mcj5kz7.png


Reply #1406 on: May 30, 2020, 02:58:58 PM

Success!!!!   DRILLING AND MANLINESS

Nice to see positive advancements for humanity live after months of 2020.

"My great-grandfather did not travel across four thousand miles of the Atlantic Ocean to see this nation overrun by immigrants.  He did it because he killed a man back in Ireland. That's the rumor."
-Stephen Colbert
Sky
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Reply #1407 on: May 30, 2020, 04:25:31 PM

I was proud to be an American again, at least for a little while.

I watched the first shuttle launch with my grandfather, this launch took me right back to those days of hope for a better future.

Abagadro
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Reply #1408 on: May 30, 2020, 04:35:14 PM

When Doug said "Let's light this candle!" I got chills.  I wonder if anyone also said "Shepard's Prayer" at some point.
« Last Edit: May 30, 2020, 04:37:51 PM by Abagadro »

"As democracy is perfected, the office of president represents, more and more closely, the inner soul of the people. On some great and glorious day the plain folks of the land will reach their heart's desire at last and the White House will be adorned by a downright moron.”

-H.L. Mencken
Cyrrex
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Reply #1409 on: May 31, 2020, 09:21:27 AM

First launch I have watched in decades.  Just needed something positive.  Rocket looked cool as shit, spacesuits looked like B movie leftovers.

"...maybe if you cleaned the piss out of the sunny d bottles under your desks and returned em, you could upgrade you vid cards, fucken lusers.." - Grunk
Sky
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Reply #1410 on: May 31, 2020, 01:36:30 PM

First launch I have watched in decades.  Just needed something positive.  Rocket looked cool as shit, spacesuits looked like B movie leftovers.
Which is still an improvement over the dopey old utilitarian suits with no style at all.

calapine
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Reply #1411 on: June 03, 2020, 06:08:39 PM

Trump's official YouTube account released a "Make space great again" video about US leadership in space.

It opens with an image of an "astronaut" wearing the European Space Agency’s logo and flag patch.



 why so serious? why so serious?

https://youtu.be/nSexGgpihE0

And since it uses a Trump speech, all the inspirational narration is a mess:

"into that forbidden skys, but they won't be forbidden for long"

"what you are doing has been incredible, but it will be even more incredible, far more incredible"

"we are Americans and the future belongs totally to us"


The video cribs heavily from SpaceX footage. Since it's not a NASA or even White House production, but a straight out advertisement - "Paid for by  by Donald J. Trump for President, Inc." -  this is more than a bit dodgy. I wonder if SpaceX will react.

Restoration is a perfectly valid school of magic!
Chimpy
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Reply #1412 on: June 03, 2020, 06:10:55 PM

I wonder if SpaceX will react.


Musk is a Randian shithead.

So his response will probably be "Thanks, Mr President!"

'Reality' is the only word in the language that should always be used in quotes.
Mandella
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Reply #1413 on: June 06, 2020, 01:36:27 PM

And speaking of that Randian shithead, I'm a few days late but since we just had the tenth anniversary of the first Falcon 9 flight it might be time for a short retrospective.





That's the first successful Falcon 9 launch with a boilerplate Dragon on top. Purely a Demo, the Dragon was not designed to separate from the second stage. There was an attempt to recover the first stage using parachutes, but that was an utter failure.

Fast forward a few (ten) years, and here we have the most recent Demo, but this one delivered astronauts Bob Behnken and Douglas Hurley to the ISS, re-establishing the US's manned spaceflight capability after an eight year gap. Plus they recovered the booster, which has become somewhat routine -- notwithstanding SpaceX's recent two in a row failure.




Lots has happened in between. Just a quick rundown led off by this chart showing the development of the Falcon family, especially the jump in size from V1.0 to 1.1. Total thrust and payload for the Block 5 is over double the first version.



In the past ten years SpaceX has refined numerous rocket technologies and procedures, including many thought impractical, uneconomical, or just downright impossible. The list includes hypersonic retropropulsion, sub-cooled propellant, return to launch site vertical landing, barge landing, first stage reuse of a vertically launched rocket, mass satellite delivery to orbit, and fairing recovery (final tally is still up in the air on that one though).

Some stats:

85 total Falcon 9 missions, with 83 successes (97.64%)

3 out of 3 Falcon Heavy missions

30 out of 30 Block 5 mission successes.

53 successful booster landings out of 63 tries (84.12%) with 19 out of 21 of the Block 5.

36 booster reuses, with 5 being the max individual reuse so far.

ISS cargo successfully sent: ~45 tonnes

ISS cargo returned: ~28 tonnes

(And to be fair, one Cargo Dragon splashed in the Atlantic, and I think they are still finding charred pieces of AMOS-6 around Launch Complex 40.)

NASA estimates the savings of Commercial Crew and Cargo to be upwards of 20 to 30 billion.

The Falcon 9 is the most flown current US launcher, and edging up on most reliable.

Not bad for a bunch of amateurs with bad welds.

Working off memory from one of the recent pressors so the quote may not be exact, but when Musk was asked if he had any message for all the doubters, he replied,

"I can appreciate it. I doubted we'd make it myself."
Khaldun
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Reply #1414 on: June 06, 2020, 08:52:30 PM

This part is really a triumph, no quibbling. I appreciate SpaceX a lot.
Sky
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Reply #1415 on: July 08, 2020, 09:06:56 AM

I hope it survives and thrives to a late night event, I hate mornings!

https://scitechdaily.com/comet-neowise-has-suddenly-become-visible-to-the-unaided-eye/

Mandella
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Reply #1416 on: July 10, 2020, 09:26:02 PM

Yeah I'm reading maybe visible in the early evening sky tomorrow night (11th).

Haven't seen it yet, since it's going to take more than the latest celestial portent of doom to get me up at the crack of dawn.
Count Nerfedalot
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Reply #1417 on: July 25, 2020, 09:41:51 PM

Today we finally had a clear night and I remembered to check, so I got to see it. Barely. Just a fuzzy blob through binoculars, not visible to naked eye due to all the light pollution.  They are pretty good binoculars though, I've seen a couple moons of Jupiter through them on multiple occasions, as infinitesimal bright points of light.

Yes, I know I'm paranoid, but am I paranoid enough?
Mandella
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Reply #1418 on: July 26, 2020, 12:23:35 PM

Today we finally had a clear night and I remembered to check, so I got to see it. Barely. Just a fuzzy blob through binoculars, not visible to naked eye due to all the light pollution.  They are pretty good binoculars though, I've seen a couple moons of Jupiter through them on multiple occasions, as infinitesimal bright points of light.

It's been hazy or outright rainy every day for weeks here in the evenings. No chance of a sighting at all.

 Ohhhhh, I see. Ohhhhh, I see.
Abagadro
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Reply #1419 on: August 04, 2020, 08:04:25 PM

They managed a 150m hop with the SN5 single Raptor today.  Best video I could find:

https://www.reddit.com/r/space/comments/i3uuyt/successful_sn5_150m_hop/


EDIT: Better video

https://twitter.com/SpaceX/status/1290854457136181248
« Last Edit: August 04, 2020, 10:46:05 PM by Abagadro »

"As democracy is perfected, the office of president represents, more and more closely, the inner soul of the people. On some great and glorious day the plain folks of the land will reach their heart's desire at last and the White House will be adorned by a downright moron.”

-H.L. Mencken
calapine
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Reply #1420 on: August 05, 2020, 01:39:58 PM



I'll repeat something I posted on Twitter: The real achievement here is Raptor, not the flying corn silo.

2000 kn, Full-flow staged combustion, MethanLox: all three, thrust, engine cycle used and propellant choice, are remarkable.

Restoration is a perfectly valid school of magic!
MournelitheCalix
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Reply #1421 on: September 19, 2020, 11:12:13 PM

Didn't see anyone mention this, but this is kind of a big deal.  They have found phosphine gas, a potential biomarker for anaerobic life on Venus.  Excitingly the researchers who found this place the accuracy of the detection at 15 sigma (the higgs boson was at a much lower 5 sigma).   The paper makes a note that the gas's presence is unlikely to be caused by volcanism or any mechanism related to light and that its percentage in the atmosphere greatly exceeds that of the expected background.  Though of course this isn't a sure thing, many including the Cool Worlds Lab at Columbia University have weighed in and deemed it "exciting."   The Cool Worlds lab most notably recently published a paper in the Proceedings of the National Academy of Sciences that used Baysian Statistics to postulate a 66% chance of a universe full of non intelligent life.  Ironically IF this is the first detection of extra terrestrial based life, it would have been found just inside of what we thought was the habitable zone calling the entire idea into question.  It also becomes perhaps the second of five sites of interest in our own solar system where life is a possible cause at best and can't be ruled out at the least.
« Last Edit: September 19, 2020, 11:14:10 PM by MournelitheCalix »

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Born too early to explore the universe.
Born just in time to see liberty die.
calapine
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Reply #1422 on: September 21, 2020, 07:39:43 AM

Astra micro launcher rocket explosion:

https://twitter.com/CultonJennifer/status/1304626860853141505?s=19

Really worth watching, the commentary is just the best ever! 😁 😁

Restoration is a perfectly valid school of magic!
Mandella
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Reply #1423 on: September 21, 2020, 12:49:52 PM

Astra micro launcher rocket explosion:

https://twitter.com/CultonJennifer/status/1304626860853141505?s=19

Really worth watching, the commentary is just the best ever! 😁 😁

"Should we go see if we can help?"

No, no that is a bad idea guy. Really bad idea...

 ACK!
Sky
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Reply #1424 on: September 21, 2020, 02:18:47 PM

That's just how kids today be.

Naive to the point of extinction.

Mandella
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Reply #1425 on: October 08, 2020, 08:35:59 PM

Just a very pretty picture:



Credit goes to John Kraus, who has many more excellent pics (plus a higher res version of the above) of all sorts of rocket launches on his site. Seriously, just stunning eye candy.

https://www.johnkrausphotos.com/
Mandella
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Reply #1426 on: November 30, 2020, 04:19:20 PM

Rocket Lab's report on their first recovery test. TLDR version, the first stage held up better than they expected and they think they should be able to engineer themselves into full first stage recover and reuse.  DRILLING AND MANLINESS

https://www.rocketlabusa.com/about-us/updates/how-to-bring-a-rocket-back-from-space/

Regrettably although Peter Beck was willing and planning to find a way to eat his hat (grinding into shreds into a milkshake was I think his favorite option) it seems he has been talked out of it by friends concerned for his health. I think a hat looking cake is now planned.
Mandella
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Reply #1427 on: November 30, 2020, 04:26:35 PM

Also wanted to drop this incredible video by Scott Manley where he mixed the latest video from the ground during the Vandenberg launch on one side with onboard camera and telemetry on the other. The video is non-stop and non-cut and un-sped up. Real time all the way from launch to landing, and the camera stays centered on the booster all the way.

Thing of note: Falcon blowing vapor rings as it goes transonic, seeing the attitude adjusting rockets fire synchronized from views both long and on the rocket, and the incredible angle of attack as the booster "surfs" towards the pad.

It really is something to see, if you have seven minutes to spare.

https://www.youtube.com/watch?v=sXup0kgkTCs
RhyssaFireheart
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Reply #1428 on: December 01, 2020, 02:54:07 PM

Arecibo Radio Telescope collapses.  It was already damaged (main support cable snapped, I believe) and today it collapsed. 

https://apnews.com/article/technology-arecibo-observatory-puerto-rico-science--0da6abb251f455977bf0c752348e712e

Trippy
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Reply #1429 on: December 01, 2020, 03:14:58 PM

RIP Arecibo Telescope.
Chimpy
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Reply #1430 on: December 01, 2020, 05:57:09 PM

RIP Arecibo Telescope.


They announced a couple weeks ago that it was irreparable and was going to be decommissioned.

'Reality' is the only word in the language that should always be used in quotes.
calapine
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Reply #1431 on: December 03, 2020, 02:34:04 PM

https://twitter.com/AuerSusan/status/1334548238792273922?s=19

Drone footage of the moment the cables give in.

Restoration is a perfectly valid school of magic!
Abagadro
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Reply #1432 on: December 10, 2020, 11:42:10 AM

Apparently a decent test for the Starship overall but the ending was pretty spectacular:


"As democracy is perfected, the office of president represents, more and more closely, the inner soul of the people. On some great and glorious day the plain folks of the land will reach their heart's desire at last and the White House will be adorned by a downright moron.”

-H.L. Mencken
Sky
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Reply #1433 on: December 10, 2020, 12:10:51 PM

The graphics in Star Citizen are really nice, but it's so buggy.

Mandella
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Reply #1434 on: December 11, 2020, 06:26:52 PM

The graphics in Star Citizen are really nice, but it's so buggy.

I watched Samprimary's playthrough. No way you'd even get that far.

 awesome, for real
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