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Nzoner's Game Room>Space Exploration megathread
DaFace 09:40 AM 06-01-2014
Since a number of cool things are happening in space exploration these days, we'll widen the scope of this thread a smidge. Conversation about all things space exploration are welcome, whether it be from NASA, SpaceX, ULA, Blue Origin, or anyone else. Chances are most of the discussion will still be about SpaceX since they love to make things public and fun, but nothing's off limits. I'll eventually get around to modifying the OP to include resources for other companies too, but in the meantime, feel free to post any cool stuff you run across.

Lists of Upcoming Missions

Spoiler!


How to Watch a Live Launch
Spoiler!


Where to Learn More
Spoiler!


Glossary
Spoiler!

[Reply]
eDave 05:20 PM 12-09-2020

[Reply]
MagicHef 05:26 PM 12-09-2020
Originally Posted by Donger:
Looks like two Raptors re-lit. Was that the plan or three?
We don't know for sure, but 2 is what Tim Dodd was predicting.
[Reply]
Donger 05:27 PM 12-09-2020
When the first engine stops, it REALLY stops! Gimballed like it was going to snap off and started a fire.

Same with the second.
[Reply]
Donger 05:30 PM 12-09-2020
And so did the third. I'm guessing that was the plan, not failures.
[Reply]
Donger 05:31 PM 12-09-2020

Watch Starship high-altitude test live → https://t.co/Hs5C53qBxb https://t.co/sEMe4firi6

— SpaceX (@SpaceX) December 9, 2020

[Reply]
DaFace 05:31 PM 12-09-2020
Originally Posted by Donger:
And so did the third. I'm guessing that was the plan, not failures.
That's my guess as well. The green flame prior to RUD was unintentional, but the "engine failures" in the air were planned.
[Reply]
Donger 05:35 PM 12-09-2020
Originally Posted by DaFace:
That's my guess as well. The green flame prior to RUD was unintentional, but the "engine failures" in the air were planned.
Yep. And I'm guessing no "smoke" from the engines on ascent and re-light because Raptor uses LOX and methane instead of LOX and kerosene on Merlins?
[Reply]
Donger 05:37 PM 12-09-2020
Watch top right. "Just a bit outside!" the pad!!


[Reply]
unlurking 05:40 PM 12-09-2020
Originally Posted by Donger:
Yep. And I'm guessing no "smoke" from the engines on ascent and re-light because Raptor uses LOX and methane instead of LOX and kerosene on Merlins?
Yeah, methalox exhaust is mostly water (IIRC). The green flame I think I've read before is caused when the engine begins to burn itself.
[Reply]
Donger 05:41 PM 12-09-2020
Starhopper watching: "That's not how you do it, SN8"
[Reply]
Donger 05:41 PM 12-09-2020
Originally Posted by unlurking:
Yeah, methalox exhaust is mostly water (IIRC). The green flame I think I've read before is caused when the engine begins to burn itself.
Thanks!
[Reply]
GloryDayz 05:45 PM 12-09-2020
Originally Posted by Donger:
Can you imagine being inside that thing for the flip!? It was a lot faster than I thought it would be.
Honestly, when it flipped I though something had gone wrong and they were going to have to blow it.

It's king of exciting watching these things when you don't really know many of the details. I though both engine shut downs meant it was toast, then the fire seemed terribad. But I'm thrilled with what they accomplished.
[Reply]
GloryDayz 05:46 PM 12-09-2020
Originally Posted by Donger:
When the first engine stops, it REALLY stops! Gimballed like it was going to snap off and started a fire.

Same with the second.
The twisting and Gimballing was fascinating to watch that clearly.
[Reply]
DaFace 06:02 PM 12-09-2020
In other news, Boeing is still making progress, albeit slowly.

We are targeting March 29, 2021 for our #Starliner's Orbital Flight Test-2.

Learn more here: https://t.co/hnvGKwN9Gq pic.twitter.com/fklPrWffff

— The Boeing Company (@Boeing) December 9, 2020

[Reply]
DaFace 06:03 PM 12-09-2020
Confirmation that the in-flight engine shutdowns were planned.

Yeah, engines did great!

— Elon Musk (@elonmusk) December 9, 2020

[Reply]
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