Chris Lewicki @interplanetary
I help bridge bold space ideas to reality. Former NASA Engr/Flight Director, Planetary Resources CEO/co-founder. Building tools from lessons learned both ways. chrislewicki.com Seattle, WA Joined June 2008-
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Considering time, focus, & risk, Will @elonmusk finally be able to afford going to space after the IPO?
I believe we all have the opportunity to go to space. The price collapse is just inevitable.
@brettcalhounn You have a system for your TASKS. You have a calendar for your SCHEDULE. You have a accounting for your BUDGET. But what do you have for your high-impact risks and opportunities? RiskThing.com fills that gap. Turn 3am anxiety into clear next steps.
I once pitched a partner at a VC firm, who informed he was late because someone in his family had some accident. I urged him to reschedule the meeting and return to his family, but he insisted on continuing because I had traveled for the pitch. After listening to the pitch, he spent the remaining time berating me for pitching him, as I already had investors with more capital than he. Apparently I should have asked them for more instead of asking him.
I was once pitching in a board room at a top 3 VC firm for a $15M Series A. 12 people in the meeting. One of the GPs fully fell asleep. Out cold for 30+ minutes. Nobody acknowledged it. Everyone just kept going. I kept presenting my Series A slides to an unconscious man in a
Very interesting. At full capacity, the orbital data center orbital shells are spaced out at ~8km between satellites (about 1 second at orbital velocities). Orbit raising (or falling) for *anything* across these altitudes will be quite a frogger run though, especially if they can't impulse burn "around" it.
The "space is big" argument is relevant when considering all of Earth orbit. But as @StephenFleming indicates, this is analogous to "car accidents happen on roadways" despite Earth being big. When every 1M+ space data center satellite wants to deploy in retrograde sun sync, the volume of desirable Earth orbit shrinks considerably to a narrow set of lanes, as @JoelSercel points out with the swept-area per day. And then safety is only maximized by satellites *that can maneuver*. Every derelict satellite or FOD becomes a risk to the rest of the ecosystem. I think it would be in newly-wealthy SpaceX shareholders' interest to fund an Space Debris XPRIZE so that their aspirations of a highly valuable Earth-orbiting constellation (and their future share price!) can be realized without space-environmental threat! This is no longer a problem when we can manage and remove the offending space debris! Elon doesn't think this is a problem (MoonShot podcast, January 2026), but as Upton Sinclair said: "It is difficult to get a man to understand something, when his [net worth] depends on [investors] not understanding it."
@IanCinnamon @Apex_Satellites Congrats! I will need to bump my credit limit on Apple Pay!
@TWC_Design Looks like a fun build! That 2° cut on the chop-saw looks scary. Suggested approach to making it safe, or nothing to fear? (because shallow cut)
@dylan @fikocian @sunilnagaraj @sunilnagaraj is among my favorite investors who "didn't invest." All-around helpful, insightful, and advancing the craft for space/deep-tech investors and entrepreneurs alike.
@MattGialich The metric is measured at AM0 considering the power panel (supporting structure, mechanisms, wiring, cells etc.) only.
@MattGialich Sure about that? (seems low) King of the hill still appears to be the UltraFlex array, first flown on the Phoenix Mars Lander in 2008. Now flying on Northrop's ISS resupply missions. 175-220 W/kg depending on config. esto.nasa.gov/conferences/ns…
@RaminNasibov Outpost: Build Mankind's Future in Space
@dylan @SimoneSyed It's space robot turtles all the way down, and it always has been.
@aaronburnett As currently contemplated, top prize is "$20M to the first team to remove 2 objects, 200kg or greater from LEO." To allow for 2nd and 3rd place winners, plus milestones and testing, its about $70M in total of funding required - most not due until someone wins it!
@MattGialich @AstroForge Co-signed. The lack of a regular, reliable, affordable launch opportunity with a C3>0 was why we never swung for an interplanetary mission at Planetary Resources.
@paulg I've always preferred the "how many miracles" test. If your business plan requires more than one miracle, its probably best to choose something else.
@TaylorCSargent Not great data to support the cost of launch coming down. The market may trend towards “premium payloads” that are less launch-price-sensitive due to their higher future cash value.
"The hardest part is never the technology. It's getting people's brains to keep up with it." — Peter Diamandis, born on this day in 1961
Eric Berger @SciGuySpace
430K Followers 761 Following Senior Space Editor at Ars Technica. Likes rockets. Author of the best-selling book on the Falcon 9 and Dragon, REENTRY. https://t.co/5HYUhJzFHZ
Phil Metzger @DrPhiltill
101K Followers 642 Following Director, Stephen W. Hawking Center for Microgravity Research & Education @UCF. Prev: co-founder NASA KSC Swamp Works. Space Mining. Space Settlement. Science.
Jonathan McDowell @planet4589
171K Followers 5K Following Astronomer commenting on space launches. Orbital Police. All plots CC-BY. https://t.co/MjaOE0FEqR
Jeff Foust @jeff_foust
107K Followers 1K Following Senior writer, @SpaceNews_Inc. Tips? DMs open, email [email protected], or on Signal: jfoust.58. Also @jfoust.bsky.social.
Jonathan A. Goff @rocketrepreneur
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Robotbeat🗽 ➐ @Robotbeat
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Dr. Tanya Harrison @tanyaofmars
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Emily Calandrelli @TheSpaceGal
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Dennis Wingo @wingod
10K Followers 5K Following 50 years ago high minded people said, forget space, fix the earth. That didn't work. Now its our turn, let us develop the space economy to fix the Earth.
Robert Zubrin @robert_zubrin
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A.C. Charania @ac_charania
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Christian Davenport @SpaceDavenport
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Peter Hague @peterrhague
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Jason Major @JPMajor
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Casey Handmer @CJHandmer
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Laura Seward Forczyk ... @LauraForczyk
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Emily Lakdawalla @elakdawalla
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Andrew Jones @AJ_FI
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Dwayne @CtrlAltDwayne
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Pete Smith @pete1on4piE0
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Millennium Twain #Tru... @MillenniumTwain
2K Followers 7K Following A Million-fold refinement in our EM-Field Mapping of Creation in Electrons, Protons, DiProtons, Alphas, FTL StarShips, Astrospheres, Cluster/Streams, Galaxies —
Tom Billings @Sine_Arrow
81 Followers 59 Following I build equipment for the National Space Society's lunar base, on National Space Society Island, in Second Life. Oregon L5 Society administers the Island.
Jason Wilhite @Space_Habitats
4 Followers 191 Following Founder and Owner at Wilhite Group LLC. Join me, create something useful for humanity
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Mehdi Montakhabi @MehdiMontakhabi
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aaron t ratner @atratner
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Katy Osadetz @KOsadetz
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gokhan @gkurttech
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Gravel Jeff @Coresrdi
7 Followers 37 Following CORES – Red Dawn Initiative Underground shelters for Mars colonization. Real engineering. Real materials. Real solutions. Mars livable from the ground down.
Michael Moreno @mikemorenosd
520 Followers 1K Following VP of Strategy at Lunar Outpost. Former CIA Case Officer, climate + defense founder. MBA @BerkeleyHaas and international affairs @ColumbiaSIPA.
Sk Prajapati @SkPrajapati56
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Shamnad M @Shamnad150
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Starship_HLS_Moon_Mar... @NavyVetWashbg67
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Roberto Vitali @robertovitali88
578 Followers 7K Following Co-Founder | Entrepreneur | Business Developer | Investor
Xona @XonaSpace
2K Followers 159 Following Next-era navigational intelligence that brings real-time, centimeter-level certainty to any device, anywhere on Earth.
Pablo Fuente @PabloFuente
159K Followers 3K Following Creator of Radio El Respeto & Órbita Infinita | Exploration born of curiosity reveals humanity’s best | Luceo non uro
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215 Followers 348 Following Principal Engineer, Founder @AICTechPro | Obsessed with local AI & MLX on Apple Silicon.
GoatFarmer @S_W_Somerville
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Sun Music @juz4music
218 Followers 2K Following
DanielMockridge @DanielMockridge
139 Followers 6K Following
Mark Friedman @MarkFriedm93907
132 Followers 1K Following Helping High Earners swap Tax Bills for Solar Assets. 📉 Stop losing 50% to the IRS. 📈 Start building 25-year cash flow. Strategies used by Family Offices.
Sweefur @SweefuraBW2MH
43 Followers 1K Following
Asteroid Wealth @asteroidwealth
0 Followers 26 Following Tracking the $100T Space Economy. 🚀 Insights on Asteroid Mining & Future Wealth. Bridging Earth’s capital with the stars. 💎 Join the mission. #AsteroidWealth
Space Policy and Civi... @AstraPublica
257 Followers 1K Following Space Politics, International Relations, Technology and the Future of Humanity https://t.co/HV2rQzbfAb
Eric Berger @SciGuySpace
430K Followers 761 Following Senior Space Editor at Ars Technica. Likes rockets. Author of the best-selling book on the Falcon 9 and Dragon, REENTRY. https://t.co/5HYUhJzFHZ
Phil Metzger @DrPhiltill
101K Followers 642 Following Director, Stephen W. Hawking Center for Microgravity Research & Education @UCF. Prev: co-founder NASA KSC Swamp Works. Space Mining. Space Settlement. Science.
Jonathan McDowell @planet4589
171K Followers 5K Following Astronomer commenting on space launches. Orbital Police. All plots CC-BY. https://t.co/MjaOE0FEqR
Jeff Foust @jeff_foust
107K Followers 1K Following Senior writer, @SpaceNews_Inc. Tips? DMs open, email [email protected], or on Signal: jfoust.58. Also @jfoust.bsky.social.
Tory Bruno @torybruno
395K Followers 528 Following President of Blue National Security. @blueorigin, ...Rocket Scientist, Horseman, proud @calpoly alum
Jonathan A. Goff @rocketrepreneur
9K Followers 669 Following Your typical mild-mannered recovering rocket engineer, dad, and space-entrepreneur.
Rocket Lab @RocketLab
630K Followers 172 Following Official account for Rocket Lab, the end-to-end space company. We build rockets and spacecraft that open access to space to improve life on Earth.
Tim Ellis @thetimellis
53K Followers 105 Following Cofounder, Board Member, & fmr CEO of @RelativitySpace
Tom Mueller @lrocket
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Michael Sheetz @thesheetztweetz
191K Followers 429 Following Director of Investor Relations @FireflySpace | Previously @CNBC
Marcia Smith @SpcPlcyOnline
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Dr. Tanya Harrison @tanyaofmars
51K Followers 10K Following Professional Martian 🔴 Former ops/science team @NASAPersevere @MarsCuriosity @MarsRovers & more 🌎 Now space industry strategist 🚀🌈🇨🇦
Thomas Zurbuchen @Dr_ThomasZ
120K Followers 695 Following Prof and Director ETHZ|Space. Explorer, Innovator, Speaker, Searcher. NASA’s Former and Longest Continually Serving Head of Science.
Emily Calandrelli @TheSpaceGal
119K Followers 2K Following MIT engineer + Emmy-Nominated Host 🎥Netflix's Emily's Wonder Lab✍🏻#1 NYTimes Best Selling Author, Emily's Science Lab on YouTube, 100th woman to fly to space
Dennis Wingo @wingod
10K Followers 5K Following 50 years ago high minded people said, forget space, fix the earth. That didn't work. Now its our turn, let us develop the space economy to fix the Earth.
Relativity Space @relativityspace
124K Followers 401 Following Building reusable rockets to empower science, exploration, and innovation beyond our planet.
SpaceNews @SpaceNews_Inc
141K Followers 274 Following Since 1989, SpaceNews has set the authoritative standard for independent space journalism. Subscribe to our newsletters: https://t.co/OurpSOmMeN
Gad Saad @GadSaad
1.3M Followers 474 Following Professor, Evolutionary Behavioral Scientist, Author. Opinions are mine alone. Retweets do not necessarily imply an endorsement.
taku @TWC_Design
5K Followers 1 Following 【木工クリエーターTWCDesign 】Total number of sns followers exceeds4M! Products can be shipped worldwide.
David Hodge @DavidHodge
3K Followers 4K Following ceo @StandardFleet. Founded Embark (YC S11. Bought by Apple). Space enthusiast.
Lenny Rachitsky @lennysan
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Dwayne @CtrlAltDwayne
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Industrious Ventures @IndustriousVC
387 Followers 58 Following We are an early-stage VC fund backing founders reinventing the most critical industries, from deep sea to deep space.
Sharran Srivatsaa @sharran
16K Followers 2K Following CEO at https://t.co/GgCRoq5a3p • VC @ ACQ Ventures • 5 exits • 100+ Investments • Substack https://t.co/RetzJN9p4D
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681 Followers 630 Following Building comms infrastructure for lunar and deep space @cascade_space | YC X25 Former @spacex | Skywave Design | FORM | @astra | @zoox
Arlen Abraham @ArlenAbraham
62 Followers 137 Following Co-founder & CTO of @cascade_space | YC X25 he/him ex @astra, ex @span_io
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130K Followers 3K Following @clickfunnels Founder • NYT Bestseller • Funnel Hacker for life • Helping entrepreneurs turn their ideas into movements.
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1K Followers 20 Following We give founders $250k - $1M solving problems critical to the USA 🇺🇸 We then help go to market, raise additional capital and connect with top mentors 🏴☠️
Cowboy Space Corp. @CowboySpaceCorp
9K Followers 47 Following Building data centers in space for artificial intelligence.
Brian Halligan @bhalligan
106K Followers 2K Following Co-founder HubSpot | Sequoia | Propeller | MIT Host, Long Strange Trip pod: https://t.co/qj9yOQVYaU
Molly O’Shea @MollySOShea
60K Followers 870 Following Investing & Tech →Newsletter/Podcast @Sourceryy | HUGE Fan @brexhq @Turingcom @public @deel
kache @yacineMTB
293K Followers 6K Following reinforcement learning, robots. prev eng @ x, stripe. 6'3 (height) working on hardware with 0 funding because it's fun. subscribe to read my blog!
Ryan Kriser @RyanKriser
2K Followers 822 Following Partner @typeonevc | Investing in space & tech to ensure a multiplanetary future. 🇺🇸🌎🚀
Omar Sultan AlOlama @OmarSAlolama
56K Followers 176 Following وزير دولة للاقتصاد الرقمي والذكاء الاصطناعي وتطبيقات العمل عن بعد Minister of State for Digital Economy, A.I. and Remote Work Applications
ClaudeDevs @ClaudeDevs
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gokhan @gkurttech
344 Followers 394 Following Staff Engineer. Building useless stuff to avoid product work.
Cheng Lou @_chenglou
69K Followers 449 Following Worked on: @reactjs, @messenger, @reasonml, @rescriptlang Currently: @midjourney, Pretext
Erik Torenberg @eriktorenberg
157K Followers 4K Following General Partner @a16z. Positive-sum. Striving for a thousand year heart.
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Athenaeum Book Club @athenaeumbc
228K Followers 362 Following The fastest growing online book club — studying and preserving the great texts of Western Civilization.
Ascent Solar @AscentSolar
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92K Followers 2K Following 2 Exits, 1000 Failures | Internet Kid est 1988 | Google Launchpad & Techstars | Working on something new
TheSteadyState @steadystate2025
33K Followers 6K Following 400+ former national security officials committed to their oaths to defend the Constitution. Join us. Learn more at https://t.co/IGar5eYSPU
Stuart Taylor @LuckyStuey
629 Followers 131 Following Space Industry Consultant - Investor - Poker Enthusiast
Farhan @mhdfaran
79K Followers 1K Following I post the latest AI tools, tutorials, and news ✉️ [email protected]
Ramya Chinnadurai �... @code_rams
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215 Followers 348 Following Principal Engineer, Founder @AICTechPro | Obsessed with local AI & MLX on Apple Silicon.
Adam Wathan @adamwathan
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Peter Steinberger �... @steipete
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39K Followers 1K Following Helping SaaS founders for 15 years via @startupspod. Educating and investing in startups through @microconf and @tinyseedfund. Wrote https://t.co/I5PVb459LT.
carl feynman @carl_feynman
21K Followers 286 Following I’ve spent a lifetime switching my Special Interest every year or two. By now I’m surprisingly knowledgeable in a lot of fields— a skill now obsoleted by AI.
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455 Followers 2K Following Product & Technology Leader | AI Innovator & Builder | Founder @ https://t.co/WS809LfoUs






























