Menu
Deep ResearchPROAsk Elon
Elon Musk · Tweet Archive

The tweet archive.

15 years of Elon, fully searchable. The production archive uses Supabase as the source of truth, with 94,952 indexed tweets available in development as a full-archive fallback and a curated annotation layer for context, theory, and how major claims aged.

Browsing the full local archive fallback (94,952 indexed tweets).
Showing 5,551-5,600 of 6,967 matching tweets
Mar 30, 2019

@TeslaAnswers @flcnhvy @Erdayastronaut @DiscoverMag We’re going to try. Side boosters come back to Cape, center core lands on droneship. Latter will be coming in v hot & fast, so dicey.

1.0K likes43 RT42 replies
Oct 2, 2012

Launching our Falcon 9 rocket and Dragon spacecraft to the Space Station on Sunday at 8:35pm EST! http://t.co/qXK0zJyC

154 likes451 RT50 replies
May 2, 2020

@biogirl09 @thirdrowtesla @Grimezsz Rocket Rd, Hawthorne CA 90250

968 likes28 RT54 replies
May 7, 2020

@flcnhvy @NASASpaceflight Yeah, although hydrogen is not a great choice for a booster engine

927 likes31 RT50 replies
Aug 17, 2020

@Booster_Buddies @NASASpaceflight My button-twiddling makes no sense at all 🤣🤣

948 likes24 RT41 replies
Oct 31, 2024

@fermatslibrary That’s basically how rocket control theory works 🚀

615 likes49 RT45 replies
May 23, 2014

V likely AF official Correll was told by ULA/Rocketdyne that a rich VP job was his if he gave them a sole source contract

316 likes328 RT45 replies
Feb 26, 2019

@annerajb @lrocket @Alexis_wwww @katlinegrey Printers are too small. Also, high pressure, high efficiency engines need copper cooling channels with an inco/steel jacket. Can’t print yet.

926 likes26 RT34 replies
May 11, 2020

@eBookBooster Zork with AI dungeon master

880 likes18 RT76 replies
Jul 14, 2014

Detailed review of rocket telemetry needed to tell if due to initial splashdown or subsequent tip over and body slam

319 likes244 RT96 replies
Apr 27, 2019

@rdstrick777 @Erdayastronaut @StevenHardison @lrocket 1

818 likes19 RT25 replies
Apr 18, 2024

@lrocket @esherifftv Fond memories

626 likes29 RT45 replies
Dec 1, 2018

@johnkrausphotos Incoming rocket & fairing probably visible, but landing itself is over the horizon

767 likes28 RT28 replies
Aug 30, 2025

RT @amXFreeze: Grok Code rocketed to #3 on Kilo Code’s monthly leaderboard, in under 4 days since release https://t.co/YyCzFEIYpT

0 likes421 RT0 replies
Feb 1, 2026

RT @mymatrixplug: Booster 19 rolled out of production last night and made a midnight voyage down to Massey's for cryogenic testing. https:/…

0 likes417 RT0 replies
Feb 12, 2018

@doug_ellison @dsfpspacefl1ght Both exhaust velocity (Isp) and mass ratio drive the rocket equation. Also thrust/mass matters a lot for Oberth effect. Delta upper stage Isp is good, but mass ratio and thrust are not.

705 likes52 RT21 replies
Apr 19, 2019

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

742 likes24 RT38 replies
Feb 12, 2018

@DavideDF_ @doug_ellison @dsfpspacefl1ght Side boosters landing on droneships & center expended is only ~10% performance penalty vs fully expended. Cost is only slightly higher than an expended F9, so around $95M.

651 likes72 RT26 replies
Feb 8, 2017

@VoltzCoreAudio I don't know what make you think that's a rocket. It's completely covered in a tarpaulin...

656 likes67 RT28 replies
Mar 31, 2014

Just stayed at the Rocket (yes!) Motel near Mt Rushmore. Sudden blizzard making road trip tricky http://t.co/TRIPC7dKwK

478 likes128 RT84 replies
Mar 20, 2013

Testing separation of F9 rocket fairing (can hold a city bus) in world's largest vacuum chamber http://t.co/2zkLi4ON0s

244 likes268 RT38 replies
Jun 25, 2019

@SteelSully @annerajb @kickber @ExploreSpaceKSC Yeah, that sounds ideal! I love the KSC rocket garden. Spent many days there looking at rocket design details.

737 likes25 RT13 replies
Dec 19, 2013

220 ft tall mobile crane to carry the rocket around in the vertical http://t.co/hgXnpEh8yU

320 likes197 RT79 replies
Oct 1, 2024

@lrocket @foundersfund Congrats!

562 likes34 RT23 replies
Nov 3, 2016

@newscientist @XHNews Congratulations to China on the successful launch of the LM 5 heavy lift rocket!

581 likes91 RT20 replies
Sep 4, 2013

Was at Vandenberg today going over the upcoming next gen F9 rocket launch. Some tense days ahead http://t.co/bfXnFt7alm

297 likes203 RT78 replies
Dec 18, 2015

@PaigeANjax -340 F in this case. Deep cryo increases density and amplifies rocket performance. First time anyone has gone this low for O2.

465 likes133 RT49 replies
Oct 21, 2025

RT @patriottakes: @elonmusk According to this, his nickname is “ass rocket.” https://t.co/t8aFer7hJH

0 likes387 RT0 replies
Jul 12, 2019

@joe_mckirdy @13ericralph31 @JHC2718 @StephanieeeeeJ 100mT to 125mT for true useful load to useful orbit (eg Starlink mission), including propellant reserves. 150mT for reference payload compared to other rockets. This is in fully reusable config. About double in fully expendable config, which is hopefully never.

643 likes48 RT19 replies
Feb 1, 2019

@nickynaptime Rocket mass ratio is about the same for aluminum-lithium vs 301 stainless full hard at cryo, but latter costs way less, is tougher & doesn’t even need paint!

664 likes30 RT24 replies
Nov 30, 2013

Rocket engines are healthy, but cleaning turbopump gas generators will take another day. Aiming for Mon eve launch.

190 likes251 RT50 replies
Jul 7, 2012

Now back to work. Intense months ahead as we ramp production of rockets and cars.

178 likes243 RT68 replies
Jul 28, 2018

@nextspaceflight Side boosters, yes, but too much load through center core

641 likes32 RT15 replies
Dec 2, 2013

All known rocket anomalies resolved. Will spend another day rechecking to be sure. Launch attempt tmrw eve w Wed as backup.

190 likes228 RT49 replies
Jun 25, 2017

@DJSnM They will, but the hydraulic system is closed loop, so no fluid lost. They do need more power & energy, but rocket has plenty of that.

606 likes31 RT23 replies
Jul 22, 2017

@andygen21 @Teslarati Yes, I postponed publishing in order to present the updated interplanetary rocket & spaceship design in Adelaide. Will be on the final day.

541 likes59 RT29 replies
Jan 24, 2012

Design completed for bringing rocket back to launchpad using only thrusters. Yay. Wings r just dead weight in space.

375 likes136 RT34 replies
Sep 20, 2013

Completed rocket static fire with all systems green this time. Launch window opens in 10 days http://t.co/rKVBLIk6yq http://www.youtube.com/watch?v=VX4LH0wn9Rs&feature=youtu.be

160 likes232 RT56 replies
May 18, 2024Viral spike

Falcon going to orbit as seen from ocean https://t.co/Dclhju24ya

897.9K likes57.9K RT17.9K replies
Mar 1, 2013

Falcon 9 delivered Dragon to its target orbit. All good on the rocket.

107 likes254 RT54 replies
Feb 22, 2018

@minhazLive This was an older version booster, so no recovery attempted

586 likes23 RT32 replies
Jun 10, 2013

1st long duration firing of the new generation Falcon 9 rocket ~1.5 million pounds of vac thrust http://t.co/iGZadNVF7w http://youtu.be/CgIghRD4-ao

148 likes222 RT64 replies
Apr 16, 2020

@KeithMansfield @Erdayastronaut @sivanithu @tobyliiiiiiiiii @cabral_psyd @imatsb @thesheetztweetz @SciGuySpace @Some1gee @RocketLab @Peter_J_Beck That’s for sure! 😅

598 likes16 RT17 replies
Mar 25, 2013

There's crazy, there's batsh*t crazy, then there's North Korea crazy... http://t.co/etJmNZqVD1 http://news.yahoo.com/blogs/lookout/north-korea-video-propaganda-us-troops-rockets-125355219.html

105 likes244 RT42 replies
Nov 28, 2013

If launch aborts, we will bring the rocket down for engine inspection, so probably a few days before next attempt

128 likes211 RT64 replies
First Principles AI
First Principles AI
Ask anything about Elon
5 free

Ask anything about Elon — companies, predictions, tweets, controversies, vehicles, family.