SpaceX Starship

I think one of the most visible changes was the switch from hydraulic to electric .

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That raptor progression pic between the 3 versions is just so wild. I think the switch from hydraulic to electric steering actuators was between V1 and V2 but I'm not 100% on that

The New Glenn 2nd stage thing is a little bit interesting. From the sounds of it, it seems like it should have reentered at this point, and the fact that it hasn't been cataloged by observers seems to imply it probably did, but there wasn't much communication about it from them

Tomorrow is a pretty rare one, we get a Falcon Heavy launch



Blue Origin showing off their moon lander engine:



And they got their booster back in port:



I don't remember if this clip of the landing from Bezos ever got shared:

 
That raptor progression pic between the 3 versions is just so wild. I think the switch from hydraulic to electric steering actuators was between V1 and V2 but I'm not 100% on that
A quick Google search suggest you may be right, but it's not super clear. Seems they switch was made a few years ago.

An interesting thing I saw while searching, the shielding on the engines had to be purged. It provided a spot where fuel could build up and cause uncontrolled high energy events.
 
Has to do with space. This has been an idea in SciFi for years. From what I read in the second link, it seems they would be better served with a nuclear reactor

 
Has to do with space. This has been an idea in SciFi for years. From what I read in the second link, it seems they would be better served with a nuclear reactor

I'm pretty sure Sim City 2000 had this technology and bad stuff happened when the satellites beaming energy down strayed over the town.
 
I'm pretty sure Sim City 2000 had this technology and bad stuff happened when the satellites beaming energy down strayed over the town.
The idea has existed for a long time. The problem with it is the same as high powered lasers. For the longest time it wasnt really efficient and atmospheric diffusion caused problems. In recent years there has been some improvement in those things though im still skeptical
 
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I'm a bit timid about satellite light reflector deals too. This one seems to be near infra red which is interesting, at least less annoying to your neighbors if there was ever any unintended misalignment. It seems like it's dispersed enough by the time it hits the ground to not cook you, but still interesting.

Too bad you can't do geosynchronous satellites over the poles, it would be kinda cool to do something like this for power/thermal support to our Antarctic bases, but yeah not feasible because no geosync



Another that exists that wants to sell sunlight on demand is Reflect Orbital. I'm even less excited about this one

 
The idea has existed for a long time. The problem with it is the same as high powered lasers. For the longest time it wasnt really efficient and atmospheric diffusion caused problems. In recent years there has been some improvement in thise things though im still skeptical
Pretty sure it is being proposed to shut up the Climate activists.
 
Pretty sure it is being proposed to shut up the Climate activists.
Probably. That said rather interestingly it was a topic we covered for about ten minutes in a panel at the nerd con i was at this weekend. (The panel was on designing realistic ships for sci fi.) One of the guys on it was a laser expert and working on some stuff in this vane. I do remember him going into a whole thing about how its a neat idea but like using lasers as weapons for real probably still a ways off from being a thing in any real capacity.
 
That's the one they posted on X last week, but glad to see they're finally putting some stuff on the official youtube again though because the playback quality is better

Falcon Heavy launch attempt number 2 is in about an hour 42 after the weather scrub on Monday. Weather might still be an issue today, we'll see





 
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