The tweet archive.

“@flcnhvy @marstronauts @Erdayastronaut @JaneidyEve @13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @SpaceX Hopefully, 4 months”

“@marstronauts @Erdayastronaut @JaneidyEve @13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @SpaceX Vacuum nozzle engines are only used in (near) vacuum conditions. Sea level engines need to gimbal rapidly & at high angle for landing. Larger nozzle leaves less room to move & increases moment of inertia.”

“@Erdayastronaut @JaneidyEve @13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @SpaceX Yeah. Outer engines with much larger nozzles are fixed to airframe, inner engines have high gimbal range ~15 degrees”

“@Debapratim15 @curiousmind44 @SPEXcast @13ericralph31 @JaneidyEve @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX @JeffBezos Yes”

“@curiousmind44 @SPEXcast @13ericralph31 @JaneidyEve @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX @JeffBezos Makes no sense. In order to grow the colony, you’d have to transport vast amounts of mass from planets/moons/asteroids. Would be like trying to build the USA in the middle of the Atlantic Ocean!”

“@_ishanspatil @SPEXcast @13ericralph31 @JaneidyEve @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX Aiming for 150 tons useful load in fully reusable configuration, but should be at least 100 tons, allowing for mass growth”

“@SPEXcast @13ericralph31 @JaneidyEve @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX N2 for vacuum. Aero surfaces & high gimbal angle main engines for atmosphere.”

“@SPEXcast @13ericralph31 @JaneidyEve @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX Hoping for 380 sec Isp, but at least 370. Otherwise similar to sea level version.”

“@13ericralph31 @JaneidyEve @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX Aspirationally”

“@JaneidyEve @13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX 3 sea level optimized Raptors, 3 vacuum optimized Raptors (big nozzle)”

“@13ericralph31 @SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX After the GoT finale, we dropped it to 6”

“@SPEXcast @bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX Mk1 & Mk2 ships at Boca & Cape will fly with at least 3 engines, maybe all 6”

“@bluemoondance74 @Orion_Sword @Some1gee @Erdayastronaut @SpaceX About to complete SN5, ramping to an engine every 3 days this summer”

“@Orion_Sword @Some1gee @Erdayastronaut @SpaceX The turbine also spins though. Partially combusted gas drives the turbine wheel, which is attached to a shaft that turns the inducer & impellers.”

“@Orion_Sword @Some1gee @Erdayastronaut @SpaceX But, essentially, the spinning things”

“@Some1gee @Erdayastronaut @SpaceX Yes”

“@Erdayastronaut @SpaceX Turbopump propellant flow path to achieve high chamber pressure is quite tricky. Requires an inducer & 2 impellers with ~100,000 shaft horsepower.”

“@BPSYT1 @Erdayastronaut @SpaceX Hopefully in about 10 days”

“@Erdayastronaut @SpaceX Physics favors full flow”

“@PunishedFranc83 @SpaceXStarlink @SpaceX Easy to turn one of our Starlink satellites into a debris collector”

“@PunishedFranc83 @SpaceXStarlink @SpaceX Yes”

“@RocketLab Congrats on many successful launches!”

“Starlink mission will be heaviest @SpaceX payload ever at 18.5 tons. If all goes well, each launch of 60 satellites will generate more power than Space Station & deliver 1 terabit of bandwidth to Earth.”

“@space_terp @NASASpaceflight Both sites will make many Starships. This is a competition to see which location is most effective. Answer might be both.”

“@NASASpaceflight SpaceX is doing simultaneous competing builds of Starship in Boca Chica Texas & Cape Canaveral Florida”

“@PPathole @SpaceX It is flat-packed. No dispenser.”

“First 60 @SpaceX Starlink satellites loaded into Falcon fairing. Tight fit. https://t.co/gZq8gHg9uK”

“@Dystopian_Blues @blueorigin @SpaceX @JeffBezos But putting the word “Blue” on a ball is questionable branding”

“@_TomCross_ @Teslarati @SpaceX @13ericralph31 One of the biggest reusability improvements was fast leg stow. Version 1 sometimes took days.”

“@Malcolmmarsman Effectively throttles via tight impulse width control & hundreds of small firings”

“Dragon approaching Space Station”

“@Rawasen_ SpaceX needs to demonstrate more progress with Starship, but that will hopefully happen rapidly”

“@Teslarati .@NASA support for reusability with high reliability, the critical breakthrough for orbital rockets, has made a big difference”

“@marshmellomusic Here you go https://t.co/CNhJwBCmx6”

“Starships on Mars https://t.co/AyKEO6ATiZ”

“Starship on the moon https://t.co/UGjDG8ofID”

“@Malcolmmarsman @Kristennetten @flcnhvy @MoWo91 @mayemusk Schrödinger is a probability distribution in the shape of a cat”

“@rdstrick777 @Erdayastronaut @StevenHardison @lrocket 1”

“@rdstrick777 @Erdayastronaut @StevenHardison @lrocket No, just preparing for untethered hover tests”

“@Erdayastronaut @StevenHardison @lrocket Tom is still an advisor to SpaceX, but semi-retired about 5 years ago & doesn’t work on Raptor. Will Heltsley heads propulsion overall, but Raptor is a team effort. No single leader.”

“@rune_ea @Erdayastronaut @DJSnM @torybruno @lrocket Exactly”

“@Erdayastronaut @DJSnM @torybruno @lrocket 🚀 propellant grade kerosene (basically, jet fuel) & liquid oxygen are close, but H2 & O2 are not”

“@Erdayastronaut @DJSnM @torybruno @lrocket Common shaft only works if optimal rpm is similar for fuel & oxidizer”

“@theRedding @Erdayastronaut Rockets are not yet safe enough to fly over land”

“@DannyLaShep With steel membrane wings like a Dragon, we may be able to lower Starship’s orbital reentry temp to ~1000 degrees C, which would allow the whole surface to be uncooled bare metal”

“@jasonsellspa Starship will land on a ring of fire”

“Thinking about adding giant stainless steel dragon wings to Starship”

“@grzf_ Starship is kinda Gundam”

“@dirtnapdragon @Tesla So if we raise prices in the future, will you cut Tesla a check? Can’t have it both ways.”

“♥️🚀💫 SpaceX team 💫🚀♥️”