NY Times paywall.Sorry, I got on the phone for a while.
Its a long article full of unbelievable Trumpisms. Read it if you can. It would take four or five posts to copy it here.
But perhaps if we make this planet habitable..?Blue Origin has some innovative tech. They seem to be choosing elegance where Musk is building almost a steam locomotive. But Musk’s aggressive development program is yielding results. The first Starship stack is flight-ready, but the FAA is seriously dragging its heels on the site environmental assessment. Third delay to April 29, until the next delay that is.
No! Planets are cradles. We emigrate, build great thousand-mile wheel worlds of nickel-iron, then slowly scrub every last trace of our having been there off of it and let it go full wild. Someday it will yield another sentient race. This might not even have been the first go.But perhaps if we make this planet habitable..?
are they designed for that? the floors would have to be arranged so that out was down, or else everyone would be walking on the walls and having to flip out of the doorways.I think that cat is out of the bag. Public space is happening hand over fist. Should Elon go full Colhaagen, there’s always Space Force. And (shades of the Caribbean) I would not be surprised if national entities discreetly field privateers.
That said, I don’t like Starship much. It can barely haul its fat ass into low earth orbit, and would need perhaps a dozen tanker runs to go to cislunar or deep space. A big problem is that Super Heavy is estimated to quit at about 2.7 km/s realized in order to have recovery propellant, which puts a 5.3 km/s burden on Starship (plus maybe 150 tons payload) to achieve LEO. To go anywhere rom there, there is a “multiple Starship tanker runs” need to replace Starship’s propellant. That should give it enough propellant to do the Moon and Mars.
For Mars, mission planners would be wise to launch two Starships and tie their noses together with a mile of tether and spin them. The “gravity” will make for a healthier happier crew. No more two hours a day strapped to a treadmill.
Tie their noses together and down stays down. Thrust axis is centrifugal axis. Might have to reinforce the nosecone to deal with tensile load.are they designed for that? the floors would have to be arranged so that out was down, or else everyone would be walking on the walls and having to flip out of the doorways.
if musk was serious about this stuff, he would build a moon base and start stocking things up in it now. perhaps even ship the big fat ass ship up there in pieces and launch it froms. there, for a LOT less fuel, and building a moon base would give them practice for mars, and a chance to try out their building techniques in a hostile environment
Yeah, I know. But it's a looooong article.NY Times paywall.
I read what was posted. Democracy Dies in Darkness -WaPo who has a paywallYeah, I know. But it's a looooong article.
they have to have forward propulsion, how do you provide that with them linked together and spinning for artificial gravity?Tie their noses together and down stays down. Thrust axis is centrifugal axis. Might have to reinforce the nosecone to deal with tensile load.
Here’s my concept. Spin them during the long coast phase. Spinup, spindown and minor course corrections are done by computer control using the rcs. During extended delta vee, which is only for transmartian injection, setup for aerobraking, and boosting for Earth return, they’re not tethered.they have to have forward propulsion, how do you provide that with them linked together and spinning for artificial gravity?
https://www.jpl.nasa.gov/edu/teach/activity/lets-go-to-mars-calculating-launch-windows/Here’s my concept. Spin them during the long coast phase. Spinup, spindown and minor course corrections are done by computer control using the rcs. During extended delta vee, which is only for transmartian injection, setup for aerobraking, and boosting for Earth return, they’re not tethered.
I do wonder how they’re gonna keep the methalox from boiling off during the long Hohmann segments. A sunshaded radiator pointed into cold space might do.
Biden should issue an executive order shutting abbot the fuck down, this is horseshit that effects the entire country, not just texas and abbot's chances for re-election
Hydrogen has two huge downsides: it has one-fifteenth the density of water. Only liquid helium-3 is less dense. This means the tankage required is large and heavy. That is why first stages burning hydroxygen are uncommon without a “stage zero” of solid rockets, like Shuttle or Ariane 5. The SLS has a similar architecture.https://www.jpl.nasa.gov/edu/teach/activity/lets-go-to-mars-calculating-launch-windows/
of course, that isn't for two linked ships, but you would imagine they could work the math out
wouldn't hydrogen/oxygen fuel provide more power in a smaller space? is it much more volatile that methalox?