Recent comments in /f/space
[deleted] OP t1_j8kysbl wrote
Reply to Cried tonight. by [deleted]
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Techutante t1_j8kpjjz wrote
Reply to comment by IfIHadTheAnswer in SpaceX rolls naked Starship prototype to test site by RGregoryClark
Is that what the kids are calling it these days?
[deleted] t1_j8kj07e wrote
Reply to comment by Truman48 in SpaceX rolls naked Starship prototype to test site by RGregoryClark
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Truman48 t1_j8kg49b wrote
Reply to comment by OnlyFreshBrine in SpaceX rolls naked Starship prototype to test site by RGregoryClark
You’re killing your father Larry
OnlyFreshBrine t1_j8kecnt wrote
15mph, I roll out, double back, grab one of em and beat it out of him.
IfIHadTheAnswer t1_j8kab0l wrote
Reply to comment by Synaptic-Sugar in SpaceX rolls naked Starship prototype to test site by RGregoryClark
They forgot the comma:
“SpaceX rolls naked, Starship prototype to test site”
Synaptic-Sugar t1_j8k6t8q wrote
I'm sorry but that title gets my mind going, on what else they could've done with the title...
"SpaceX Starship prototype flaunts its bare voluptuous curves on its way to test site"
"Geez, this is a public space, please put some tiles on!" (Actually not really kinda but shush :P)
"Boca Chica now confirmed a nude beach"
eberkain t1_j8jt77p wrote
Reply to comment by Bensemus in SpaceX rolls naked Starship prototype to test site by RGregoryClark
Well the factory is more like 1 every 3 months, starlink needs to be as cheap as possible also, I can't imagine any scenario where they use expendable ships to launch starlink.
colonizetheclouds t1_j8jrgml wrote
Reply to comment by cjameshuff in SpaceX rolls naked Starship prototype to test site by RGregoryClark
would make sense to test early HLS SN with orbital refuelling. Two tests at once.
If able to fuel successfully, send to moon.
Bensemus t1_j8jqrla wrote
Reply to comment by eberkain in SpaceX rolls naked Starship prototype to test site by RGregoryClark
Most likely HLS or a ground test vehicle of some kind but SpaceX may use some disposable Starships for Starlink. If their factory is up to 1 a day but they don’t have reuse figured out then disposable is a way to get some use out of them. Unlikely but possible.
putin_my_ass t1_j8jpw4g wrote
Reply to comment by DejanTepic in SpaceX rolls naked Starship prototype to test site by RGregoryClark
Starship? More like naked hobby rocket amirite?
[deleted] t1_j8jlftg wrote
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mjzimmer88 t1_j8jicqd wrote
Reply to comment by DejanTepic in SpaceX rolls naked Starship prototype to test site by RGregoryClark
This is SpaceX not Blue Origin
mjzimmer88 t1_j8jiby0 wrote
Reply to comment by DejanTepic in SpaceX rolls naked Starship prototype to test site by RGregoryClark
This is SpaceX not Blue Origin
DejanTepic t1_j8jfnyq wrote
During the winter, isn't it kind of risky to leave a naked starship outside in low temperatures,
it could potentially shrink.
I speak from first hand experience.
eberkain t1_j8jf8w2 wrote
Reply to comment by Bensemus in SpaceX rolls naked Starship prototype to test site by RGregoryClark
Got to be a test for HLS, it would make zero sense to use expendable vehicles on starlink or tankers.
cjameshuff t1_j8jb1lv wrote
Reply to comment by LdLrq4TS in SpaceX rolls naked Starship prototype to test site by RGregoryClark
This would probably be closer to what the depot itself will be, as the tankers will need heat shields and flaps. This might also be some hybrid, maybe just a cheaper way to test propellant transfer when they're still working on recovery.
Bensemus t1_j8j8g8j wrote
Reply to comment by RGregoryClark in SpaceX rolls naked Starship prototype to test site by RGregoryClark
What have you been smoking? This is likely either part of HLS, an expendable Starship for Starlink launches, or a tanker/depot test Starship.
LdLrq4TS t1_j8j73tn wrote
Reply to comment by RGregoryClark in SpaceX rolls naked Starship prototype to test site by RGregoryClark
Yeah, no, it needs superheavy to reach orbit, what you see is a tanker to carry propelant for fuel depot.
RusticMachine t1_j8ixtpl wrote
Reply to comment by RGregoryClark in SpaceX rolls naked Starship prototype to test site by RGregoryClark
> The key clue is it’s moved to the suborbital launch pad. This means it can launch without the SuperHeavy booster.
I think you’re confused. SpaceX has been testing all their Starship prototypes on the suborbital launch pad (e.g. cryo testing, static fires, etc.). This is not an indication it will launch from that platform.
Fyi, Starship by itself, even in an expandable configuration, cannot reach orbit. It needs SuperHeavy even if it were empty (also, the additional 3 engines are vacuum optimized and are only meant to be started at a higher altitude).
[deleted] t1_j8idte2 wrote
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RGregoryClark OP t1_j8iddqh wrote
The key clue is it’s moved to the suborbital launch pad. This means it can launch without the SuperHeavy booster. With 6 engines it can launch fully fueled unlike the previous Starship test flights meant just to test landing.
The key question: what is the dry mass of this expendable version without flaps, legs, heat shield, or ballast tanks? If you know that you can calculate how much payload it can lift to orbit in a single stage.
Elon said the expendable version with only 3 engines might mass only 40 tons:
https://twitter.com/elonmusk/status/1111798912141017089?s=61&t=A46qVnS2GH4VVA-pQSUlkg
Add another 5 tons for 3 more engines and this version might mass 45 tons. However, the increased thrust may require strengthening of the tanks which would increase the dry mass. On the other hand, this version would have to support far less payload atop it then the max 250 tons of the full two-stage so would need reduced tank strengthening.
[deleted] t1_j8i6y5c wrote
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CheetoRay t1_j8i0hgg wrote
Reply to comment by Representative_Pop_8 in Stereoscopic motion parallax of the Moon passing between L1 and the Earth by EmergeHolographic
As the technique name implies, you cross your eyes until two images merge.
RobDickinson t1_j8l6sdz wrote
Reply to Micrometeorites, The Expanse, and Deflector Shields by GuyD427
Space isnt empty. But what it has is quite .. spaced out...
So it depends how fast you are going how worried you need to be.
The space station gets hit by micrometeorites, no reason why Voyager or a ship cant.
We've no idea how a deflector shield would work.
So we'll be looking at armor/shielding and self sealing, plus potentially lasers to pew pew small particles out of the way, if we can detect them.
Scifi has some cool things including large ships that use a whole bunch of ice on the front to absorb the damage