The tweet archive.

“@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”

“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.”

“@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.”

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

“@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.”

“♥️🚀💫 SpaceX team 💫🚀♥️”

“Thanks on behalf of @SpaceX team! We ♥️♥️♥️ @NASA!”

“@NASAGoddard @SpaceX .@SpaceX team would be so honored to fly this for @NASA!”

“@SpaceX Upper atmospheric wind shear is very high. Will have to postpone launch unless weather improves soon.”

“@nextspaceflight @Erdayastronaut @DiscoverMag Yes. Sensitive propulsion & avionics remained dry. Great work by SpaceX Dragon engineering team. Major improvement over Dragon 1.”

“@Drew78823936 @Erdayastronaut @DJSnM @RocketTenor @NASA @SpaceX @Space_Station @Commercial_Crew Probably right. Starship rate of progress far exceeds Falcon & Dragon, although they’re critical to getting there. dInnovation/dt is what matters long-term.”

“@DJSnM @RocketTenor @NASA @SpaceX @Space_Station @Commercial_Crew For cargo missions, propulsive land landing should be no problem. Doesn’t have same safety criticality as crew.”

“@dmk184 @NASA @SpaceX @Space_Station @Commercial_Crew Pretty much any moon or planet that has a solid or liquid surface”

“@iamkostmos @NASA @SpaceX @Space_Station @Commercial_Crew Most likely, but this is contingent upon NASA review & approval”

“@xandriteme @NASA @SpaceX @Space_Station @Commercial_Crew Best to use a giant brake pad, aka heat shield”

“@ajithshan03 @NASA @SpaceX @Space_Station @Commercial_Crew No”

“@NASA @SpaceX @Space_Station @Commercial_Crew Dragon 2 was designed to land using thrusters, with parachutes as backup. Switched to chutes as primary, due to difficulty of proving safety, but Dragon can still do it. https://t.co/Mr7VFIQwWf https://m.youtube.com/watch?v=07Pm8ZY0XJI”

“@roscosmos @Rogozin @JimBridenstine Thank you on behalf of SpaceX! We have always admired your rocket/spacecraft technology.”

“@BarackObama @NASA @SpaceX @Commercial_Crew Thank you on behalf of the people of SpaceX!”

“SpaceX team in Hawthorne control, Dragon docked to Station above https://t.co/JUWkOrWjsH”

“SpaceX Crew Dragon has docked with International @Space_Station https://t.co/CccsItLLvJ”

“@BoeingCEO @SpaceX @Commercial_Crew @NASA @Space_Station Thank you. May you have good luck and godspeed with your spacecraft!”

“@realDonaldTrump Thank you on behalf of SpaceX. Also, thank you to @NASA, without whom this would not be possible.”

“@VP @POTUS @NASA @SpaceX Thank you on behalf of the many people of SpaceX”

“@fhurst4762 @SpaceX @Space_Station Lightning bolt right before launch”

“@raulv48 @bryanMackSC @Tesla Need to get back to SpaceX launch control. Sorry this solution isn’t perfect.”

“@MihaRekar @SpaceX Haha”

“@NASASpaceflight @flcnhvy @rogiermaas @SpaceX Yes”

“@katlinegrey @lrocket @Alexis_wwww Rest of SpaceX propulsion still very active, so only ~50 full-time equivalent people right now. That will grow a lot as we enter production. It’s 10X harder (at least) to design engine production system than engine. In automotive, 100X harder.”

“@lrocket @Alexis_wwww @katlinegrey Tom did an awesome job leading Merlin, Kestrel, Draco & other engine developments from start through 2014 that were critical to SpaceX’s success. Great respect & appreciation!”

“@flcnhvy @rogiermaas @SpaceX Focusing on Starship instead”

“@rogiermaas @SpaceX Deorbits & burns up over the Pacific”

“@katlinegrey SpaceX commercial 🚀 launch market share went from 0% in 2010 to 65% in 2018. Despite massive subsidies to Boeing/Lockeed, they have never won a fair competition against SpaceX for several years. https://t.co/sqAYCCcJtd”

“@fan_of_racing @bkent136 @macodiseas @katlinegrey SpaceX Merlin architecture is simpler than staged combustion (eg SSME or RD), but it has world record for thrust/weight & thrust/cost engine. Raptor has better Isp, but I’m worried it may fall short on those two critical metrics.”

“@katlinegrey I have been chief engineer/designer at SpaceX from day 1. Had I been better, our first 3 launches might have succeeded, but I learned from those mistakes. https://t.co/3r6ZqEc30A https://arstechnica.com/science/2018/07/as-the-spacex-steamroller-surges-european-rocket-industry-vows-to-resist/3/”

“@FredericLambert @georgezachary I had to focus on solving a painfully large number of engineering & manufacturing problems at Tesla (especially) & SpaceX”

“SpaceX foundry casting Raptor engine manifold out of Inconel https://t.co/zWlqNwGj0R”

“@Erdayastronaut @John_Gardi @w0lfyxD @Robotbeat @SpaceX Yeah, but simpler. Needed for landing burn or engines will suck in a bubble.”

“@John_Gardi @w0lfyxD @Robotbeat @SpaceX Starship & Super Heavy will press tanks autogenously even in version 1. Very important, as helium costs more than oxygen on Falcon, even though liquid oxygen is 2/3 vehicle mass & helium weighs basically nothing.”

“@John_Gardi @w0lfyxD @Robotbeat @SpaceX True”

“@AstrumMining @SPEXcast @McMurchie @Robotbeat @John_Gardi @SpaceX Moon first, Mars as soon as the planets align”

“@SPEXcast @ikrbkv @MARINAVALOVA2 @alexmd2 @SpaceX On my bedside table”