The tweet archive.

“@alex_avoigt Contrary to what he thinks, that mandate, if it remains, will save BMW. All transport will be electric, with the ironic exception of rockets.”

“@TimFernholz So why is this madness acceptable for Boeing/Lockheed rockets?”

“RT @MarcusHouse: Booster 14, will be the first Super Heavy in history to be reused! Awesome static fire! 🔥Not only that, Fram2 was the firs…”

“@DavidNagySFgang @rocketry_catboy Indeed. Grid fin designs clearly work, but do they maximize payload? Good chance that they do not. Something with much more drag to reduce terminal velocity & so reduce landing propellant might have better performance. Not sure. Potential future optimization.”

“@arstechnica @SciGuySpace Haha true. Great headline. It’s quite hard to have rocket test articles not explode, as they so desperately want to!”

“@Erdayastronaut @ValkyrieBaron11 @flcnhvy @NASASpaceflight A fully & rapidly reusable orbital rocket is fundamental to extending life beyond Earth. Propellant cost is roughly a 1000th of vehicle cost (unless using a foolish propellant). Same principle as cars, planes, boats, etc.”

“@flcnhvy @alvianchoiri We’re not seeing notable differences yet. I think the boosters could probably do 100+ reflights. Some of the (small) composite helium tanks would need to be replaced. Maybe turbopump hot sections.”

“@BnOrdhaug @yasin_shafiei @thejackbeyer @NASASpaceflight @BocaChicaGal @NicAnsuini That’s the plan. We’re taking a little risk there, as engine isolation was done as retrofit, so not as good as on Booster 9.”

“@cb_doge Yup. I even suggested to the team that maybe we shouldn’t design rockets after comedy, but now everyone likes it pointy 😂”

“RT @Yasin__Shafiei: Super Heavy Booster catch 🤩 https://t.co/oTZu79fl0v”

“@Erdayastronaut @CptnCrutch5373 @Kalzsom Super Heavy rocket will be much like Falcon 9, but the Ship is a strange combination of Dragon, F9 & a skydiver.”

“@ID_AA_Carmack Rocket hits hard at ~45 deg angle, smashing legs and engine section http://t.co/PnzHHluJfG”

“@katlinegrey @Zvezdichko @SciGuySpace @Rogozin In the future, it will be as strange to have expendable rockets as it would be to have expendable airplanes today. All will be reusable.”

“But you can check it out on @9GAGTweets. Btw, this isn't a video, like cliff diving or fake rocket landings, that matters if it's reversed.”

“@ESYudkowsky Our meat computers are feeble (sigh). We did get manage to get a few monkeys to the moon using rockets designed with slide rules, which is pretty impressive.”

“Ask me anything at 9pm Florida time (focused on tomorrow's 6am rocket launch) http://t.co/DvCbw4kTJy http://reddit.com/r/IAmA”

“@RocketsTTV @MarioNawfal The current paper-down-a-mineshaft retirement system will be digital within a month or so”

“@EstesRockets 🔥🔥”

“@Erdayastronaut @SPEXcast @SciGuySpace Even more important for a a reusable rocket, as cost of propellant actually becomes relevant & anything below T/W of 1 is wasted fuel & oxygen”

“Odds of rocket landing successfully today are still less than 50%. The 80% figure by end of year is only bcs many launches ahead.”

“@spacesudoer It’s often some aspiring academic who couldn’t build a working rocket if you put a gun to their head lol”

“@katlinegrey Reusability is essential. A rocket that is single use is just as absurd as a single use airplane. F9 engines already fire 3 times per flight.”

“@ID_AA_Carmack Hydrogen in cars make zero sense. Its best case use is rockets and, even then, it loses to methane imo.”

“@CivilsEdu @AMAZlNGNATURE Dang, it’s a biprop rocket thruster! @lrocket”

“@niccruzpatane All transport will be electric, except for rockets”

“@Erdayastronaut @PPathole @austinbarnard45 @LabPadre There are redundant pressure control valves. It’s a new system and SN3 was simply commanded wrong. Rockets are hard.”

“@DimaZeniuk So many Super Heavy Boosters”

“@teslaownersSV Yeah, wouldn’t be believable if it were fiction. A giant rocket that is the heaviest flying object ever made and it’s on a beach down by the river 😂”

“To land a rocket, Just Read the Instructions http://t.co/FJAM72zNWo http://www.planetary.org/blogs/jason-davis/2015/20150410-just-read-instructions.html”

“@rustyrockets So crazy”

“@johnkrausphotos @PolarisProgram Nothing beats seeing a rocket launch”

“@DJSnM We should make a new high Mach super sonic plane, but nothing comes close to beating rockets in their native environment of space (obviously)”

“@CateLuvsLondon @vicentes @S_Padival @bourgeoisalien @jacobinmag When I was a kid, I built model airplanes, trainsets, rockets (mixed my own powder), explosives (kinda surprised I still have all fingers), a radio, lots of software. Built a primitive MRI machine in college.”

“@Erdayastronaut @PPathole @austinbarnard45 @LabPadre If you lose pressure control on rocket propellant tanks, you’re doomed anyway, so might as well go all in”

“@SciGuySpace These problems are fundamentally intertwined. Building many rockets allows for successive approximation. Progress in any given technology is simply # of iterations * progress between iterations.”

“But credit for 1st reusable suborbital rocket goes to X-15 https://t.co/LSb0f8FLJd And Burt Rutan for commercial https://t.co/TGWlNjsyQz https://en.m.wikipedia.org/wiki/North_American_X-15”

“@EvaFoxU The premature death of a rocket engineering genius was a great blow”

“RT @cb_doge: For the first time ever, there is a rocket capable of carrying humanity into a Kardashev era. https://t.co/sK950ptPGv”

“First of next gen Falcon 9 rockets rolls out to the launch pad at Vandenberg Air Force Base http://t.co/hNl6zKodvr”

“@alvianchoiri Ahem, yes, it was the 3rd flight of this booster & 3rd flight for active half of fairing. Aiming for 10+ flights of booster & fairing by end of next year.”

“@PhysInHistory Major breakthrough. They used logarithms and slide rules to design the Saturn V moon rocket.”

“@DJSnM @Erdayastronaut @CharlesNOtrumps @rweb11742 Absolutely. Production/testing of rocket engines is over 90% of the problem. This is true in general. For cars, production is over 99% of the problem. That 1% inspiration is very important, but it’s less than 1% of the pain.”

“@PTrubey Early Atlas rockets used stainless, but it was certainly (incorrectly) considered to be far inferior to composites. All things considered, including strain-hardened strength at cryo, toughness, ease of welding on attachments, no need for paint and resistance to high”

“RT @DimaZeniuk: Super Heavy booster is pure engineering art https://t.co/MWO5565aNb”

“@nextspaceflight @MacTechGenius @blundell_apps I'm doing my best to recalibrate, but that is a fair criticism. However, if I wasn't inherently optimistic, I wouldn't be doing electric cars and rockets in the first place!”

“@flcnhvy Sprockets was amazing”

“RT @lrocket: In this example, stars like the sun would be about the size of red blood cells and on average would be about 500 m apart”

“Same rocket flight, but this time with cows! http://t.co/qhF5JWzyCW http://www.youtube.com/watch?v=HXdjxPY2j_0&feature=youtu.be”

“To provide a little perspective on the size of Grasshopper, we added a 6 ft cowboy to the rocket http://t.co/3NMYJqmd”

“@fermatslibrary Slosh control is a real problem with liquid-fueled rockets!”