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21
Why is the trunk now dark? The first pictures of the vehicle shows it white.

22
If the engine goes up to 109% thrust, why dont they make that 100% thrust?  And why dont they just make 10 louder instead of adding 11?  And why wont these kids get off my lawn?

Short answer - Mission Planning.
The SSME increased in thrust after its introduction into service, but the missions were based on the baseline thrust (100%), so to avoid confusion about which '100%' the engines were rated at, they kept the same baseline thrust rate as 100% and the up rated engines ran at 104% on the normal missions and 109% on an abort.
23
SpaceX BFR - Earth to Deep Space / Re: Elon The Boring Company
« Last post by gideonlow on Today at 05:06 AM »

This is where I would insert a bunch of images of wrecked Teslas or Ubers or Googles that were running on autopilot and list the ongoing NTSB investigations, etc..  I'm not going to do that because everyone can find them themselves easily enough.  Yes, there is modern advanced impressive complex technology that can autodrive vehicles, but it is not yet ready, is not yet fool proof or fail safe. 


Are you seriously comparing open road autopilot with orchestration of purpose-built vehicles in a one-way controlled access tunnel?  Really?? 

And since you went there . . . All the hype/hit-piece stories that come out with every glitch in (by all accounts still experimental and under development) auto-pilot technology fail to include the most important context: how many accidents happen due to auto-pilot compared to human driven carsThat's the interesting measure, and it tells a different story than the narrative you've suggested.
24
What is the tank structure in the left back corner of the level the workers are on? One of the tanks has an American flag on it?
25
I don't see it, notice there's no backup for Delta IV Heavy, one was planned but not funded to completion.

What is the proposal you are referencing?

https://en.wikipedia.org/wiki/Atlas_V#Atlas_V_Heavy

Atlas V Heavy was probably two years away from becoming operational, but work would not have started without the U.S. Government approving funding for it. But Delta IV Heavy would be unlikely to stay out of commission for longer than it would take to make Atlas V Heavy operational, so it was never required.

The SLS, if used to it's maximum capabilities, would likely be a single-point-of-failure transportation system. But so far there are no near-term plans that really require it's full capabilities, or at least in a way that can't be replaced with an alternative.

And regardless, Congress has not been worried about a lack of redundancy for the SLS, so full-speed ahead!
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Space Science Coverage / Re: JAXA Hayabusa2 Mission Updates
« Last post by yoichi on Today at 04:53 AM »

27
Itís great to be at this point with the testing.  But this makes me feel like manned flights are still further away than it shows on the manifest.

Hears to the first test flight!
28
If the engine goes up to 109% thrust, why dont they make that 100% thrust?  And why dont they just make 10 louder instead of adding 11?  And why wont these kids get off my lawn?
29
I don't see it, notice there's no backup for Delta IV Heavy, one was planned but not funded to completion.

What is the proposal you are referencing?

https://en.wikipedia.org/wiki/Atlas_V#Atlas_V_Heavy
30
I spy several interesting pieces of hardware on the deck behind the man in the blue hoodie.  There's also a display board, so they must show people around there sometimes.  AND, to keep on topic: nice Dragon!
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